{"title":"Hang On Back (HOB) Filters","description":"\u003ch2\u003eHang-On-Back (HOB) Aquarium Filters in India\u003c\/h2\u003e\n\u003cp\u003eHang-on-back filters, also called \u003cstrong\u003eHOB, power or waterfall filters\u003c\/strong\u003e, are the easiest external filters to live with. They clip onto the rim of your tank, draw water up through mechanical, biological and chemical media, and spill it back in a gentle waterfall that also skims and oxygenates the surface. They're the sweet spot for most beginners and community tanks: more media and flow than an internal filter, far simpler than a canister. Fish Bazaar stocks HOB filters from \u003cstrong\u003eSeachem Tidal\u003c\/strong\u003e, \u003cstrong\u003eFluval C-Series\u003c\/strong\u003e, \u003cstrong\u003eSobo\u003c\/strong\u003e and \u003cstrong\u003eBlue Pet\u003c\/strong\u003e, shipped across India.\u003c\/p\u003e\n\u003ch3\u003eWhich HOB filter for your tank?\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNano – 2 ft (up to ~70L):\u003c\/strong\u003e Sobo WP-308H, Blue Pet BLH-301\/401.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2–4 ft (70–265L):\u003c\/strong\u003e Sobo WP-408H, Fluval C-Series, Seachem Tidal 55\/75.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4–5 ft (300–425L):\u003c\/strong\u003e Seachem Tidal 110.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eDeciding between styles? Compare \u003ca href=\"\/blogs\/news\/canister-vs-hob-vs-sponge\"\u003ecanister vs HOB vs sponge filters\u003c\/a\u003e and see the full \u003ca href=\"\/blogs\/news\/aquarium-filter-guide\"\u003eaquarium filter buying guide\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eFrequently asked questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is a hang-on-back filter?\u003c\/strong\u003e An external power filter that hangs on the back rim of the tank and returns water as a waterfall, providing three-stage filtration plus surface skimming without taking up space inside the tank.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAre HOB filters good for planted tanks?\u003c\/strong\u003e Yes, though the waterfall can off-gas CO2. In high-tech planted tanks many aquarists prefer a canister; for low-tech planted or community tanks a HOB is excellent.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDo HOB filters make noise?\u003c\/strong\u003e A properly primed HOB with a full water level is very quiet; the main noise is the waterfall, which you can soften by keeping the tank topped up.\u003c\/p\u003e","products":[{"product_id":"fluval-c4-hang-on-back-filter","title":"Fluval C-Series Hang-On-Back Power Filter | up to 265L (4 ft) | Fish Bazaar","description":"\u003cp\u003eThe \u003cstrong\u003eFluval C-Series hang-on-back aquarium filter\u003c\/strong\u003e is a 5-stage clip-on HOB power filter for fish tanks up to \u003cstrong\u003e265 litres (around 70 US gallons, roughly 4 feet)\u003c\/strong\u003e, delivering approximately \u003cstrong\u003e1,000 litres per hour\u003c\/strong\u003e of clean, clear water. Uniquely among hang-on filters, the C-Series performs five stages of filtration — including a re-filtration step — for both freshwater and saltwater aquariums. It clips onto the back of your tank, is easy to maintain, and is one of the most capable hang-on-back filters available in India.\u003c\/p\u003e\n\n\u003ch2\u003eWhat is the Fluval C-Series Filter?\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eShort answer:\u003c\/strong\u003e A 5-stage hang-on-back (HOB) power filter for tanks up to 265 litres, suitable for freshwater and saltwater.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIn detail:\u003c\/strong\u003e The Fluval C-Series clips onto the tank rim and cascades filtered water back in. What sets it apart is its \u003cstrong\u003e5-stage filtration\u003c\/strong\u003e: two mechanical stages (foam pads), a chemical stage (activated carbon), and two biological stages including a unique trickle-down bio-screen that exposes bacteria to oxygen-rich air for extra efficiency. It has adjustable flow and a clog-warning indicator. \u003cstrong\u003eFor example:\u003c\/strong\u003e on a 3–4 foot community or marine tank (around 150–265 L), the C-Series keeps water polished and stable with more filtration stages than a typical HOB.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e5-stage filtration\u003c\/strong\u003e — mechanical, chemical and biological, including a trickle-down bio-screen for extra oxygenated bacterial action.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e~1,000 LPH flow\u003c\/strong\u003e — strong circulation for tanks up to 265 L.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFreshwater and saltwater ready\u003c\/strong\u003e — versatile across tank types.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustable flow with re-filtration\u003c\/strong\u003e — excess water is re-filtered rather than wasted.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClog-warning indicator\u003c\/strong\u003e — tells you when maintenance is due.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEasy clip-on design\u003c\/strong\u003e — simple to install and service.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eBenefits\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eImmediate:\u003c\/strong\u003e Clear water and strong circulation from day one, with more filtration stages than an ordinary HOB.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eShort-term:\u003c\/strong\u003e The dual biological stages mature into a powerful bacterial colony, keeping ammonia and nitrite at zero.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLong-term:\u003c\/strong\u003e Reliable, versatile filtration for freshwater or marine tanks, for years, with only inexpensive media to replace.\u003c\/p\u003e\n\n\u003ch2\u003eHow It Works\u003c\/h2\u003e\n\u003cp\u003eThe C-Series runs water through five stages — two \u003cstrong\u003emechanical\u003c\/strong\u003e foam pads trap fine and coarse debris, \u003cstrong\u003eactivated carbon\u003c\/strong\u003e handles chemical polishing, and two \u003cstrong\u003ebiological\u003c\/strong\u003e stages (a submerged bio-media and an oxygen-rich trickle-down bio-screen) grow the bacteria that convert toxic ammonia to nitrite and nitrate. See \u003ca href=\"\/blogs\/news\/how-aquarium-filters-work\"\u003ehow aquarium filters work\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eWhich Tank Size Is the Fluval C-Series For?\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eShort answer:\u003c\/strong\u003e Tanks up to 265 litres — roughly up to a 4 foot aquarium.\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eTank length\u003c\/th\u003e\n\u003cth\u003eApprox. volume\u003c\/th\u003e\n\u003cth\u003eC-Series suitability\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2–3 ft\u003c\/td\u003e\n\u003ctd\u003e60–120 L\u003c\/td\u003e\n\u003ctd\u003eGood (turn flow down)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3–4 ft\u003c\/td\u003e\n\u003ctd\u003e120–200 L\u003c\/td\u003e\n\u003ctd\u003eIdeal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e4 ft\u003c\/td\u003e\n\u003ctd\u003eup to 265 L\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e4 ft+\u003c\/td\u003e\n\u003ctd\u003e265 L+\u003c\/td\u003e\n\u003ctd\u003eStep up to a canister or the \u003ca href=\"\/products\/seachem-tidal-75-hang-on-back-filter\"\u003eTidal 75\/110\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eSuitable For\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eFreshwater community tanks\u003c\/li\u003e\n\u003cli\u003eMarine and reef tanks (as supplementary filtration)\u003c\/li\u003e\n\u003cli\u003eKeepers who want more filtration stages from a hang-on filter\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eNot Suitable For\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eTanks over 265 L — choose a canister or a larger Tidal HOB\u003c\/li\u003e\n\u003cli\u003eNano and betta tanks — the flow may be strong; a small internal or sponge filter is gentler\u003c\/li\u003e\n\u003cli\u003eRimless tanks where a HOB cannot clip on securely\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSetup \u0026amp; Usage\u003c\/h2\u003e\n\u003cp\u003eClip the filter onto the back rim, load the foam pads, carbon and bio-media, prime it, and switch on. Set the flow to suit your fish. Rinse the mechanical pads in old tank water when the clog indicator shows. Allow 4–6 weeks to cycle. See the \u003ca href=\"\/blogs\/news\/how-to-install-aquarium-filter\"\u003einstallation guide\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eFluval C-Series Power Filter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilter type\u003c\/td\u003e\n\u003ctd\u003eHang-on-back (HOB), 5-stage\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSuitable tank size\u003c\/td\u003e\n\u003ctd\u003eup to 265 L (70 US gal)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlow rate\u003c\/td\u003e\n\u003ctd\u003e~1,000 LPH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWater type\u003c\/td\u003e\n\u003ctd\u003eFreshwater \u0026amp; saltwater\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaintenance alert\u003c\/td\u003e\n\u003ctd\u003eClog-warning indicator\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBest for\u003c\/td\u003e\n\u003ctd\u003eCommunity \u0026amp; marine tanks up to 4 ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eCommon Problems It Solves\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eLimited filtration of basic HOBs:\u003c\/strong\u003e five stages including a re-filtration step do more. \u003cstrong\u003eKnowing when to clean:\u003c\/strong\u003e the clog-warning indicator tells you. \u003cstrong\u003eMarine filtration needs:\u003c\/strong\u003e works on saltwater as well as freshwater. \u003cstrong\u003eCloudy water:\u003c\/strong\u003e dual mechanical plus carbon keeps it clear.\u003c\/p\u003e\n\n\u003ch2\u003eFluval C-Series vs Other Filters\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eFeature\u003c\/th\u003e\n\u003cth\u003eFluval C-Series\u003c\/th\u003e\n\u003cth\u003eBasic HOB\u003c\/th\u003e\n\u003cth\u003eSeachem Tidal\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eFiltration stages\u003c\/td\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003ctd\u003e2–3\u003c\/td\u003e\n\u003ctd\u003e3 (large basket)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlow rate\u003c\/td\u003e\n\u003ctd\u003e~1,000 LPH\u003c\/td\u003e\n\u003ctd\u003evariable\u003c\/td\u003e\n\u003ctd\u003e1,000–2,000 LPH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaintenance alert\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBest tank size\u003c\/td\u003e\n\u003ctd\u003eup to 265 L\u003c\/td\u003e\n\u003ctd\u003eup to ~120 L\u003c\/td\u003e\n\u003ctd\u003eup to 425 L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eExpert Recommendation\u003c\/h2\u003e\n\u003cp\u003eFor a community or marine tank up to 4 feet where you want more filtration from a hang-on unit, the Fluval C-Series is our top multi-stage HOB pick. Boost its biological capacity with a little \u003ca href=\"\/products\/seachem-matrix\"\u003eSeachem Matrix\u003c\/a\u003e or \u003ca href=\"\/products\/tcws-bio-media\"\u003eTCWS Bio-Media\u003c\/a\u003e, and add \u003ca href=\"\/products\/seachem-purigen-100ml\"\u003ePurigen\u003c\/a\u003e for extra clarity.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat tank size is the Fluval C-Series suitable for?\u003c\/h3\u003e\n\u003cp\u003eTanks up to 265 litres (about 70 US gallons), roughly up to a 4 foot aquarium.\u003c\/p\u003e\n\u003ch3\u003eWhat is the flow rate of the Fluval C-Series?\u003c\/h3\u003e\n\u003cp\u003eApproximately 1,000 litres per hour, with adjustable flow and a re-filtration feature.\u003c\/p\u003e\n\u003ch3\u003eWhat does 5-stage filtration mean?\u003c\/h3\u003e\n\u003cp\u003eThe C-Series uses two mechanical stages, one chemical (carbon) stage and two biological stages, including an oxygen-rich trickle-down bio-screen.\u003c\/p\u003e\n\u003ch3\u003eCan the Fluval C-Series be used on a marine tank?\u003c\/h3\u003e\n\u003cp\u003eYes — it works on both freshwater and saltwater aquariums.\u003c\/p\u003e\n\u003ch3\u003eDoes the Fluval C-Series tell me when to clean it?\u003c\/h3\u003e\n\u003cp\u003eYes — a clog-warning indicator shows when the mechanical media needs rinsing.\u003c\/p\u003e\n\u003ch3\u003eFluval C-Series vs Seachem Tidal — which is better?\u003c\/h3\u003e\n\u003cp\u003eThe C-Series offers five filtration stages; the Tidal offers a larger single media basket and surface skimmer. Choose by tank size and preference.\u003c\/p\u003e\n\u003ch3\u003eHow often do I clean the Fluval C-Series?\u003c\/h3\u003e\n\u003cp\u003eRinse the mechanical pads in old tank water when the clog indicator shows, typically every 2–4 weeks.\u003c\/p\u003e\n\u003ch3\u003eIs the Fluval C-Series good for planted tanks?\u003c\/h3\u003e\n\u003cp\u003eYes — it suits planted community tanks; turn the flow down if your plants prefer gentler current.\u003c\/p\u003e\n\u003ch3\u003eDoes the Fluval C-Series come with media?\u003c\/h3\u003e\n\u003cp\u003eYes, it ships with foam pads, carbon and bio-media; you can add extra bio-media for capacity.\u003c\/p\u003e\n\u003ch3\u003eIs the Fluval C-Series quiet?\u003c\/h3\u003e\n\u003cp\u003eYes — it runs quietly when primed and the water level is correct.\u003c\/p\u003e\n\u003ch3\u003eCan I use the Fluval C-Series on a betta tank?\u003c\/h3\u003e\n\u003cp\u003eOn a larger betta tank, yes — turn the flow down or baffle the outflow for gentle current.\u003c\/p\u003e\n\u003ch3\u003eIs the Fluval C-Series worth it in India?\u003c\/h3\u003e\n\u003cp\u003eYes — its 5-stage filtration and versatility make it excellent value among hang-on-back filters.\u003c\/p\u003e\n\u003ch3\u003eDoes the Fluval C-Series need an air pump?\u003c\/h3\u003e\n\u003cp\u003eUsually not — the cascade and trickle bio-screen aerate well; add an air pump in hot summers for extra oxygen.\u003c\/p\u003e\n\n\u003ch2\u003eRelated Products \u0026amp; Guides\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eRelated filters:\u003c\/strong\u003e \u003ca href=\"\/products\/seachem-tidal-55-hang-on-back-filter\"\u003eSeachem Tidal 55\u003c\/a\u003e \/ \u003ca href=\"\/products\/seachem-tidal-75-hang-on-back-filter\"\u003e75\u003c\/a\u003e (large HOBs), \u003ca href=\"\/products\/fluval-307-canister-filter-40-70-us-gal-90-330-l\"\u003eFluval 307 canister\u003c\/a\u003e. \u003cstrong\u003eRecommended media:\u003c\/strong\u003e \u003ca href=\"\/products\/seachem-matrix\"\u003eSeachem Matrix\u003c\/a\u003e, \u003ca href=\"\/products\/tcws-bio-media\"\u003eTCWS Bio-Media\u003c\/a\u003e, \u003ca href=\"\/products\/seachem-purigen-100ml\"\u003ePurigen\u003c\/a\u003e. \u003cstrong\u003eCollections:\u003c\/strong\u003e \u003ca href=\"\/collections\/fluval-aquarium-filters-fish-bazaarr\"\u003eFluval Filters\u003c\/a\u003e, \u003ca href=\"\/collections\/aquarium-filter\"\u003eAquarium Filters\u003c\/a\u003e. \u003cstrong\u003eGuides:\u003c\/strong\u003e \u003ca href=\"\/blogs\/news\/canister-vs-hob-vs-sponge\"\u003eCanister vs HOB vs Sponge\u003c\/a\u003e, \u003ca href=\"\/blogs\/news\/types-of-aquarium-filters\"\u003eTypes of Aquarium Filters\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eConclusion\u003c\/h2\u003e\n\u003cp\u003eThe Fluval C-Series hang-on-back aquarium filter brings 5-stage filtration — including a unique trickle-down bio-screen — to tanks up to 265 litres (4 ft) in both freshwater and saltwater. With ~1,000 LPH flow, a clog-warning indicator and easy clip-on installation, it is one of the most capable hang-on-back filters in India.\u003c\/p\u003e","brand":"Fluval","offers":[{"title":"Default Title","offer_id":44377415909418,"sku":null,"price":7999.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0720\/9238\/5322\/files\/FluvalC4Hangonfilter.jpg?v=1779800998"},{"product_id":"sobo-wp-308h-slim-aquarium-filter-power-aquarium-filter","title":"Sobo WP-308H Slim Hang-On Aquarium Filter | up to 70L (Nano–2 ft) | Fish Bazaar","description":"\u003cp\u003eThe \u003cstrong\u003eSobo WP-308H slim hang-on aquarium filter\u003c\/strong\u003e is a compact, affordable hang-on-back (HOB) filter for small and nano fish tanks up to roughly \u003cstrong\u003e70 litres (around 2 feet)\u003c\/strong\u003e, with an ultra-slim profile that barely protrudes behind the tank. It hangs on the rim, returns filtered water over the surface, and provides simple 3-stage filtration — making it one of the best-value small aquarium filters available in India for nano and betta tanks.\u003c\/p\u003e\n\n\u003ch2\u003eWhat is the Sobo WP-308H Filter?\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eShort answer:\u003c\/strong\u003e A slim, budget hang-on-back (HOB) aquarium filter for small and nano tanks up to about 70 litres.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIn detail:\u003c\/strong\u003e The WP-308H clips onto the back rim with a very slim body, lifts water through a filter cartridge, and trickles it back over the surface. It is easy to install and clean, and well suited to nano and small community tanks. Check the product listing for the exact flow rating. \u003cstrong\u003eFor example:\u003c\/strong\u003e on a 1.5–2 foot nano or betta tank, the WP-308H keeps the water clear and gently circulated without taking up space inside the tank.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eUltra-slim hang-on design\u003c\/strong\u003e — minimal footprint behind the tank.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGentle, small-tank flow\u003c\/strong\u003e — suited to nano and betta setups.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3-stage filtration\u003c\/strong\u003e — mechanical, biological and chemical in the cartridge.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSurface agitation\u003c\/strong\u003e — the return flow aerates the water.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEasy maintenance\u003c\/strong\u003e — quick cartridge access for cleaning.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGreat value\u003c\/strong\u003e — effective HOB filtration at a low price.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eBenefits\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eImmediate:\u003c\/strong\u003e Clear water and gentle surface circulation from day one, with simple hang-on installation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eShort-term:\u003c\/strong\u003e The media matures into a biological filter, keeping ammonia and nitrite at zero in small tanks.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLong-term:\u003c\/strong\u003e Dependable, low-cost filtration for nano tanks, with cheap and easy media changes.\u003c\/p\u003e\n\n\u003ch2\u003eHow It Works\u003c\/h2\u003e\n\u003cp\u003eThe pump lifts water through the cartridge — \u003cstrong\u003emechanical\u003c\/strong\u003e media traps debris, \u003cstrong\u003ebiological\u003c\/strong\u003e media grows the bacteria that convert toxic ammonia to nitrite and nitrate, and \u003cstrong\u003echemical\u003c\/strong\u003e media (carbon) polishes the water — then returns it over the surface. See \u003ca href=\"\/blogs\/news\/how-aquarium-filters-work\"\u003ehow aquarium filters work\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eWhich Tank Size Is the WP-308H For?\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eShort answer:\u003c\/strong\u003e Small and nano tanks up to about 70 litres — roughly up to 2 feet.\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eTank length\u003c\/th\u003e\n\u003cth\u003eApprox. volume\u003c\/th\u003e\n\u003cth\u003eWP-308H suitability\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e1 ft\u003c\/td\u003e\n\u003ctd\u003e10–15 L\u003c\/td\u003e\n\u003ctd\u003eGood (gentle flow)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1.5 ft\u003c\/td\u003e\n\u003ctd\u003e25–35 L\u003c\/td\u003e\n\u003ctd\u003eIdeal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2 ft\u003c\/td\u003e\n\u003ctd\u003e50–70 L\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2 ft+\u003c\/td\u003e\n\u003ctd\u003e70 L+\u003c\/td\u003e\n\u003ctd\u003eStep up to the \u003ca href=\"\/products\/sobo-slim-filter-wp-408h-hang-on-filter\"\u003eSobo WP-408H\u003c\/a\u003e or a larger HOB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eSuitable For\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eNano and small community tanks\u003c\/li\u003e\n\u003cli\u003eBetta tanks (gentle flow; baffle if needed)\u003c\/li\u003e\n\u003cli\u003eBeginner and budget setups\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eNot Suitable For\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eTanks over 70 L — choose the \u003ca href=\"\/products\/sobo-slim-filter-wp-408h-hang-on-filter\"\u003eWP-408H\u003c\/a\u003e or a larger HOB\u003c\/li\u003e\n\u003cli\u003eHeavily-stocked or messy-fish tanks — limited media capacity\u003c\/li\u003e\n\u003cli\u003eRimless tanks where a HOB cannot hang securely\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSetup \u0026amp; Usage\u003c\/h2\u003e\n\u003cp\u003eHang the filter on the back rim, fit the cartridge, prime it with tank water, and switch on. Rinse the media in old tank water every 2–4 weeks. Allow 4–6 weeks to cycle. See the \u003ca href=\"\/blogs\/news\/how-to-install-aquarium-filter\"\u003einstallation guide\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eSobo WP-308H (slim hang-on)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilter type\u003c\/td\u003e\n\u003ctd\u003eHang-on-back (HOB), slim\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSuitable tank size\u003c\/td\u003e\n\u003ctd\u003eup to ~70 L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlow rate\u003c\/td\u003e\n\u003ctd\u003eSmall-tank rated (verify on listing)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFiltration stages\u003c\/td\u003e\n\u003ctd\u003eMechanical, biological, chemical\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBest for\u003c\/td\u003e\n\u003ctd\u003eNano \u0026amp; betta tanks up to 2 ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eCommon Problems It Solves\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eLimited space:\u003c\/strong\u003e the ultra-slim body barely protrudes. \u003cstrong\u003eStrong current in small tanks:\u003c\/strong\u003e its gentle flow suits nano and betta setups. \u003cstrong\u003eTight budgets:\u003c\/strong\u003e effective filtration at a low price. \u003cstrong\u003eCloudy nano water:\u003c\/strong\u003e 3-stage filtration keeps it clear.\u003c\/p\u003e\n\n\u003ch2\u003eSobo WP-308H vs Other Filters\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eFeature\u003c\/th\u003e\n\u003cth\u003eSobo WP-308H\u003c\/th\u003e\n\u003cth\u003eSobo WP-408H\u003c\/th\u003e\n\u003cth\u003eSponge filter\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBest tank size\u003c\/td\u003e\n\u003ctd\u003eup to 70 L\u003c\/td\u003e\n\u003ctd\u003eup to 100 L\u003c\/td\u003e\n\u003ctd\u003eup to ~60 L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlow\u003c\/td\u003e\n\u003ctd\u003eGentle\u003c\/td\u003e\n\u003ctd\u003eModerate\u003c\/td\u003e\n\u003ctd\u003eGentle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProfile\u003c\/td\u003e\n\u003ctd\u003eUltra-slim\u003c\/td\u003e\n\u003ctd\u003eSlim\u003c\/td\u003e\n\u003ctd\u003eIn-tank\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrice\u003c\/td\u003e\n\u003ctd\u003eAffordable\u003c\/td\u003e\n\u003ctd\u003eAffordable\u003c\/td\u003e\n\u003ctd\u003eAffordable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eExpert Recommendation\u003c\/h2\u003e\n\u003cp\u003eFor a nano or betta tank where space and gentle flow matter, the Sobo WP-308H is a great budget slim-HOB pick. Add a little \u003ca href=\"\/products\/tcws-bio-media\"\u003eTCWS Bio-Media\u003c\/a\u003e to boost biological capacity, and pair with a \u003ca href=\"\/products\/air-pump-sobo-sb-228-mini-ac-dc\"\u003eSobo air pump\u003c\/a\u003e in warm weather.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat tank size is the Sobo WP-308H suitable for?\u003c\/h3\u003e\n\u003cp\u003eSmall and nano tanks up to about 70 litres — roughly up to a 2 foot aquarium.\u003c\/p\u003e\n\u003ch3\u003eIs the WP-308H a hang-on filter?\u003c\/h3\u003e\n\u003cp\u003eYes — it is an ultra-slim hang-on-back (HOB) filter for the rear rim of the tank.\u003c\/p\u003e\n\u003ch3\u003eIs the WP-308H good for a betta tank?\u003c\/h3\u003e\n\u003cp\u003eYes — its gentle flow suits bettas; baffle the outflow if the current is still too strong.\u003c\/p\u003e\n\u003ch3\u003eWP-308H vs WP-408H — which should I choose?\u003c\/h3\u003e\n\u003cp\u003eChoose the WP-308H for nano tanks up to ~70 L and the WP-408H for small tanks up to ~100 L.\u003c\/p\u003e\n\u003ch3\u003eDoes the WP-308H come with media?\u003c\/h3\u003e\n\u003cp\u003eYes, it includes a filter cartridge; add bio-media such as TCWS Bio-Media for more capacity.\u003c\/p\u003e\n\u003ch3\u003eHow often do I clean the WP-308H?\u003c\/h3\u003e\n\u003cp\u003eRinse the media in old tank water every 2–4 weeks; never under the tap.\u003c\/p\u003e\n\u003ch3\u003eIs the WP-308H quiet?\u003c\/h3\u003e\n\u003cp\u003eYes, when primed and topped up; keep the water level correct so the pump does not run dry.\u003c\/p\u003e\n\u003ch3\u003eCan the WP-308H be the only filter in my tank?\u003c\/h3\u003e\n\u003cp\u003eYes, for nano and small tanks up to about 70 litres it provides complete filtration.\u003c\/p\u003e\n\u003ch3\u003eIs the Sobo WP-308H good for beginners?\u003c\/h3\u003e\n\u003cp\u003eYes — it is simple, affordable and easy to maintain, ideal as a first nano-tank filter.\u003c\/p\u003e\n\u003ch3\u003eIs the WP-308H good value in India?\u003c\/h3\u003e\n\u003cp\u003eYes — it is an affordable, space-saving slim HOB for nano and betta tanks.\u003c\/p\u003e\n\u003ch3\u003eDo I need an air pump with the WP-308H?\u003c\/h3\u003e\n\u003cp\u003eNot usually, but in hot Indian summers an air pump adds extra oxygen.\u003c\/p\u003e\n\n\u003ch2\u003eRelated Products \u0026amp; Guides\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eStep up:\u003c\/strong\u003e \u003ca href=\"\/products\/sobo-slim-filter-wp-408h-hang-on-filter\"\u003eSobo WP-408H\u003c\/a\u003e, \u003ca href=\"\/products\/seachem-tidal-55-hang-on-back-filter\"\u003eSeachem Tidal 55\u003c\/a\u003e. \u003cstrong\u003eTop filter option:\u003c\/strong\u003e \u003ca href=\"\/products\/sobo-aquarium-top-filter-wp-880f-power-15w-f-max-650l-hr-power-aquarium-filter\"\u003eSobo WP-880F\u003c\/a\u003e. \u003cstrong\u003eMedia \u0026amp; aeration:\u003c\/strong\u003e \u003ca href=\"\/products\/tcws-bio-media\"\u003eTCWS Bio-Media\u003c\/a\u003e, \u003ca href=\"\/products\/air-pump-sobo-sb-228-mini-ac-dc\"\u003eSobo air pump\u003c\/a\u003e. \u003cstrong\u003eCollections:\u003c\/strong\u003e \u003ca href=\"\/collections\/aquarium-filter\"\u003eAquarium Filters\u003c\/a\u003e, \u003ca href=\"\/collections\/filters-filtration\"\u003eFilters \u0026amp; Filtration\u003c\/a\u003e. \u003cstrong\u003eGuides:\u003c\/strong\u003e \u003ca href=\"\/blogs\/news\/types-of-aquarium-filters\"\u003eTypes of Aquarium Filters\u003c\/a\u003e, \u003ca href=\"\/blogs\/news\/reduce-filter-flow\"\u003eHow to Reduce Filter Flow\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eConclusion\u003c\/h2\u003e\n\u003cp\u003eThe Sobo WP-308H slim hang-on aquarium filter is a compact, affordable, gentle-flow choice for nano and small tanks up to about 70 litres (up to 2 ft). With an ultra-slim design and simple 3-stage filtration, it keeps nano and betta tanks clear and healthy — one of the best-value small aquarium filters in India.\u003c\/p\u003e","brand":"Fish Bazaar","offers":[{"title":"Default Title","offer_id":44377424920618,"sku":null,"price":2110.0,"currency_code":"INR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0720\/9238\/5322\/files\/515q7JP5FkL._SX522.jpg?v=1779732914"},{"product_id":"sobo-wp-208h-hang-on-biochemical-filter-water-purifier-aquarium-pump","title":"Sobo WP-208H Hang-On Filter | Turtle \u0026 Small Tanks (up to 50L) | Fish Bazaar","description":"\u003cp\u003eThe \u003cstrong\u003eSobo WP-208H hang-on aquarium filter\u003c\/strong\u003e is a compact, affordable hang-on-back (HOB) filter designed to work even at \u003cstrong\u003elow water levels\u003c\/strong\u003e, making it ideal for small fish tanks up to roughly \u003cstrong\u003e50 litres\u003c\/strong\u003e and especially for \u003cstrong\u003eturtle and terrapin tanks\u003c\/strong\u003e where the water sits below the rim. It hangs on the back, returns filtered water over the surface, and provides simple mechanical and biological filtration at a budget-friendly price — one of the most practical small and turtle-tank filters available in India.\u003c\/p\u003e\n\n\u003ch2\u003eWhat is the Sobo WP-208H Filter?\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eShort answer:\u003c\/strong\u003e A budget hang-on-back (HOB) aquarium filter built to run at low water levels, ideal for small tanks up to ~50 litres and turtle tanks.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIn detail:\u003c\/strong\u003e Many hang-on filters fail when the water drops below the rim — common in turtle tanks, which are kept part-filled. The WP-208H is designed to keep working at lower water levels, drawing water through a filter cartridge and returning it over the surface. It is easy to install and clean. \u003cstrong\u003eFor example:\u003c\/strong\u003e on a part-filled turtle tank or a small nano tank, the WP-208H keeps the water clear where a standard HOB would lose its prime.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow-water-level operation\u003c\/strong\u003e — keeps filtering even when the water is below the rim, perfect for turtles.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact hang-on design\u003c\/strong\u003e — small footprint behind the tank.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMechanical + biological filtration\u003c\/strong\u003e — traps debris and grows beneficial bacteria.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSurface return\u003c\/strong\u003e — aerates and circulates the water.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEasy maintenance\u003c\/strong\u003e — simple cartridge access.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBudget-friendly\u003c\/strong\u003e — practical filtration at a low price.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eBenefits\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eImmediate:\u003c\/strong\u003e Clear water and circulation from day one, even in a part-filled tank.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eShort-term:\u003c\/strong\u003e The media matures into a biological filter, helping control waste from messy turtles and small fish.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLong-term:\u003c\/strong\u003e Reliable, low-cost filtration for turtle and small tanks, with cheap and easy media changes.\u003c\/p\u003e\n\n\u003ch2\u003eHow It Works\u003c\/h2\u003e\n\u003cp\u003eThe pump draws water through the cartridge — \u003cstrong\u003emechanical\u003c\/strong\u003e media traps debris and \u003cstrong\u003ebiological\u003c\/strong\u003e media grows the bacteria that convert toxic ammonia to nitrite and nitrate — then returns it over the surface, working even at reduced water depth. See \u003ca href=\"\/blogs\/news\/how-aquarium-filters-work\"\u003ehow aquarium filters work\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eWhich Tank Size Is the WP-208H For?\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eShort answer:\u003c\/strong\u003e Small tanks up to about 50 litres and part-filled turtle tanks.\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eUse case\u003c\/th\u003e\n\u003cth\u003eApprox. volume\u003c\/th\u003e\n\u003cth\u003eWP-208H suitability\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eNano fish tank\u003c\/td\u003e\n\u003ctd\u003eup to 30 L\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSmall fish tank\u003c\/td\u003e\n\u003ctd\u003e30–50 L\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTurtle \/ terrapin (part-filled)\u003c\/td\u003e\n\u003ctd\u003elow water level\u003c\/td\u003e\n\u003ctd\u003eIdeal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLarger tanks\u003c\/td\u003e\n\u003ctd\u003e50 L+\u003c\/td\u003e\n\u003ctd\u003eStep up to the \u003ca href=\"\/products\/sobo-slim-filter-wp-408h-hang-on-filter\"\u003eWP-408H\u003c\/a\u003e or a larger HOB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eSuitable For\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eTurtle and terrapin tanks kept at low water levels\u003c\/li\u003e\n\u003cli\u003eNano and small fish tanks\u003c\/li\u003e\n\u003cli\u003eBudget and beginner setups\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eNot Suitable For\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eTanks over ~50 L of fish stocking — choose a larger HOB or canister\u003c\/li\u003e\n\u003cli\u003eHeavily-stocked tanks — limited media capacity (for messy turtles, pair with a canister)\u003c\/li\u003e\n\u003cli\u003eRimless tanks where a HOB cannot hang securely\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSetup \u0026amp; Usage\u003c\/h2\u003e\n\u003cp\u003eHang the filter on the back, fit the cartridge, prime it, and switch on — it will keep running at reduced water depth. Rinse the media in old tank water every 1–2 weeks for turtle tanks (which produce more waste). See the \u003ca href=\"\/blogs\/news\/how-to-install-aquarium-filter\"\u003einstallation guide\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eSobo WP-208H\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilter type\u003c\/td\u003e\n\u003ctd\u003eHang-on-back (HOB), low-water\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSuitable tank size\u003c\/td\u003e\n\u003ctd\u003eup to ~50 L \/ turtle tanks\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpecial feature\u003c\/td\u003e\n\u003ctd\u003eWorks at low water levels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFiltration stages\u003c\/td\u003e\n\u003ctd\u003eMechanical, biological\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBest for\u003c\/td\u003e\n\u003ctd\u003eTurtle, terrapin \u0026amp; nano tanks\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eCommon Problems It Solves\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eHOBs losing prime in turtle tanks:\u003c\/strong\u003e the WP-208H keeps filtering at low water levels. \u003cstrong\u003eMurky turtle water:\u003c\/strong\u003e mechanical and biological filtration help control waste. \u003cstrong\u003eTight budgets:\u003c\/strong\u003e practical filtration at a low price. \u003cstrong\u003eLimited space:\u003c\/strong\u003e compact hang-on design.\u003c\/p\u003e\n\n\u003ch2\u003eSobo WP-208H vs Other Filters\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eFeature\u003c\/th\u003e\n\u003cth\u003eSobo WP-208H\u003c\/th\u003e\n\u003cth\u003eStandard HOB\u003c\/th\u003e\n\u003cth\u003eInternal filter\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eLow water level\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003ctd\u003eOften fails\u003c\/td\u003e\n\u003ctd\u003eYes (submerged)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTurtle-friendly\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003ctd\u003eLimited\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBest tank size\u003c\/td\u003e\n\u003ctd\u003eup to ~50 L\u003c\/td\u003e\n\u003ctd\u003eup to ~300 L\u003c\/td\u003e\n\u003ctd\u003eup to ~80 L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrice\u003c\/td\u003e\n\u003ctd\u003eAffordable\u003c\/td\u003e\n\u003ctd\u003eMid\u003c\/td\u003e\n\u003ctd\u003eAffordable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eExpert Recommendation\u003c\/h2\u003e\n\u003cp\u003eFor a turtle tank or a small nano tank, the Sobo WP-208H is our top low-water hang-on pick. For messy turtles, pair it with a canister such as the \u003ca href=\"\/products\/fluval-107-canister-filter-10-30-us-gal-40-130-l\"\u003eFluval 107\u003c\/a\u003e for extra capacity, and add a little \u003ca href=\"\/products\/tcws-bio-media\"\u003eTCWS Bio-Media\u003c\/a\u003e to boost biological filtration.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat tank size is the Sobo WP-208H suitable for?\u003c\/h3\u003e\n\u003cp\u003eSmall tanks up to about 50 litres, and part-filled turtle or terrapin tanks.\u003c\/p\u003e\n\u003ch3\u003eCan the WP-208H work at low water levels?\u003c\/h3\u003e\n\u003cp\u003eYes — that is its key feature. It keeps filtering even when the water sits below the rim, ideal for turtle tanks.\u003c\/p\u003e\n\u003ch3\u003eIs the WP-208H good for turtle tanks?\u003c\/h3\u003e\n\u003cp\u003eYes — it is designed for the low water levels typical of turtle and terrapin setups. For messy turtles, add a canister for extra capacity.\u003c\/p\u003e\n\u003ch3\u003eIs the WP-208H a hang-on filter?\u003c\/h3\u003e\n\u003cp\u003eYes — it is a compact hang-on-back (HOB) filter built for low water levels.\u003c\/p\u003e\n\u003ch3\u003eDoes the WP-208H come with media?\u003c\/h3\u003e\n\u003cp\u003eYes, it includes a filter cartridge; add bio-media such as TCWS Bio-Media for more capacity.\u003c\/p\u003e\n\u003ch3\u003eHow often do I clean the WP-208H?\u003c\/h3\u003e\n\u003cp\u003eEvery 1–2 weeks for turtle tanks (which are messy), rinsing the media in old tank water; every 2–4 weeks for fish tanks.\u003c\/p\u003e\n\u003ch3\u003eIs the WP-208H quiet?\u003c\/h3\u003e\n\u003cp\u003eYes, when primed; keep the pump submerged enough to avoid running dry.\u003c\/p\u003e\n\u003ch3\u003eCan the WP-208H be the only filter for my turtle?\u003c\/h3\u003e\n\u003cp\u003eFor a single small turtle, it can suffice; larger or multiple turtles need additional filtration such as a canister.\u003c\/p\u003e\n\u003ch3\u003eIs the Sobo WP-208H good for beginners?\u003c\/h3\u003e\n\u003cp\u003eYes — it is simple, affordable and easy to maintain.\u003c\/p\u003e\n\u003ch3\u003eIs the WP-208H good value in India?\u003c\/h3\u003e\n\u003cp\u003eYes — it is an affordable, practical filter, especially for turtle keepers who struggle with standard HOBs.\u003c\/p\u003e\n\u003ch3\u003eDo I need an air pump with the WP-208H?\u003c\/h3\u003e\n\u003cp\u003eNot usually for fish tanks; the surface return aerates the water. Add one in warm weather if needed.\u003c\/p\u003e\n\n\u003ch2\u003eRelated Products \u0026amp; Guides\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eStep up:\u003c\/strong\u003e \u003ca href=\"\/products\/sobo-slim-filter-wp-408h-hang-on-filter\"\u003eSobo WP-408H\u003c\/a\u003e, \u003ca href=\"\/products\/fluval-107-canister-filter-10-30-us-gal-40-130-l\"\u003eFluval 107 canister\u003c\/a\u003e. \u003cstrong\u003eMedia \u0026amp; aeration:\u003c\/strong\u003e \u003ca href=\"\/products\/tcws-bio-media\"\u003eTCWS Bio-Media\u003c\/a\u003e, \u003ca href=\"\/products\/air-pump-sobo-sb-228-mini-ac-dc\"\u003eSobo air pump\u003c\/a\u003e. \u003cstrong\u003eCollections:\u003c\/strong\u003e \u003ca href=\"\/collections\/aquarium-filter\"\u003eAquarium Filters\u003c\/a\u003e, \u003ca href=\"\/collections\/filters-filtration\"\u003eFilters \u0026amp; Filtration\u003c\/a\u003e. \u003cstrong\u003eGuides:\u003c\/strong\u003e \u003ca href=\"\/blogs\/news\/types-of-aquarium-filters\"\u003eTypes of Aquarium Filters\u003c\/a\u003e, \u003ca href=\"\/blogs\/news\/aquarium-filter-guide\"\u003eComplete Aquarium Filter Guide\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eConclusion\u003c\/h2\u003e\n\u003cp\u003eThe Sobo WP-208H hang-on aquarium filter is a compact, affordable filter that keeps working at low water levels — the practical choice for turtle and terrapin tanks and small nano fish tanks up to about 50 litres. With easy installation and mechanical-biological filtration, it keeps water clear where standard hang-on filters struggle.\u003c\/p\u003e","brand":"Fish Bazaar","offers":[{"title":"Default Title","offer_id":44377424986154,"sku":null,"price":1046.0,"currency_code":"INR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0720\/9238\/5322\/files\/fp-sobo-hanging-filter-wp208h-sobo-original-imaft2cjsxaurcaf.webp?v=1779732924"},{"product_id":"sobo-wp-series-aquarium-energy-saving-submersible-pump","title":"SOBO WP Series Aquarium Energy Saving Submersible Pump","description":"\u003cdiv class=\"product__title\"\u003e\n\u003ch1\u003eSOBO WP Series Aquarium Energy Saving Submersible Pump\u003c\/h1\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"Quantity-Form-template--19084932841692__main\" class=\"product-form__input product-form__quantity\"\u003e\u003c\/div\u003e\n\u003cdiv id=\"productDescription_feature_div\" class=\"celwidget pd_rd_w-E31w3 pd_rd_r-FK56PPX919RP6H7EB6XR pd_rd_wg-zAi5U\" data-feature-name=\"productDescription-3\" data-csa-c-type=\"widget\" data-csa-c-content-id=\"productDescription-3\" data-csa-c-slot-id=\"productDescription_feature_div\" data-csa-c-asin=\"\" data-csa-c-is-in-initial-active-row=\"false\" data-csa-c-id=\"cly8bs-ivu6k1-17ixgc-wc797t\" data-cel-widget=\"productDescription_feature_div\"\u003e\n\u003cdiv data-feature-name=\"productDescription\" data-template-name=\"productDescription\" id=\"productDescription_feature_div\" class=\"a-row feature\" data-cel-widget=\"productDescription_feature_div\"\u003e\n\u003cdiv id=\"productDescription\" class=\"a-section a-spacing-small\"\u003e\n\u003cp\u003e\u003cspan\u003eDo not let the pump run dry operate the pump completely underwater for proper cooling do pull the pump unit with power cord, power cord damaged not to be replaced. Four suction cups are provided at the bottom of the pump fix in your fish tank. SOBO is a completely submersible motor pump suitable for both fresh and salt water with extremely quiet operation used for aquarium, hydroponics and aquaculture.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSPECIFCATION:-\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eModel : WP-3200\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eFrequency : 220-240V 50Hz\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003ePower : 5W\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eH. Max : 0.6m\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eF. Max : 300L\/H\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eSPECIFCATION:-\u003c\/strong\u003e\u003cbr\u003eModel : WP-3300\u003cbr\u003eFrequency : 220-240V 50Hz\u003cbr\u003ePower : 12W\u003cbr\u003eH. Max : 1m\u003cbr\u003eF. Max : 600L\/H\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cbr\u003e\u003cstrong\u003eSPECIFCATION:-\u003c\/strong\u003e\u003cbr\u003eModel : WP-3400\u003cbr\u003eFrequency : 220-240V 50Hz\u003cbr\u003ePower : 15W\u003cbr\u003eH. Max : 1.2m\u003cbr\u003eF. Max : 880L\/H\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"climatePledgeFriendlyBTF_feature_div\" class=\"celwidget pd_rd_w-2kCGZ pd_rd_r-FK56PPX919RP6H7EB6XR pd_rd_wg-zAi5U\" data-feature-name=\"climatePledgeFriendlyBTF_HIT_AllMp\" data-csa-c-type=\"widget\" data-csa-c-content-id=\"climatePledgeFriendlyBTF_HIT_AllMp\" data-csa-c-slot-id=\"climatePledgeFriendlyBTF_feature_div\" data-csa-c-asin=\"\" data-csa-c-is-in-initial-active-row=\"false\" data-csa-c-id=\"sa84ph-9eozmr-u4mu26-dvhgxu\" data-cel-widget=\"climatePledgeFriendlyBTF_feature_div\"\u003e\u003c\/div\u003e\n\u003cdiv id=\"productDetails_feature_div\" class=\"celwidget pd_rd_w-HYitq pd_rd_r-FK56PPX919RP6H7EB6XR pd_rd_wg-zAi5U\" data-feature-name=\"productDetailsHomeAndGarden_Updated\" data-csa-c-type=\"widget\" data-csa-c-content-id=\"productDetailsHomeAndGarden_Updated\" data-csa-c-slot-id=\"productDetails_feature_div\" data-csa-c-asin=\"\" data-csa-c-is-in-initial-active-row=\"false\" data-csa-c-id=\"yw7t8a-lxnxfl-w267wf-256ljd\" data-cel-widget=\"productDetails_feature_div\"\u003e\u003ca id=\"productDetails\" name=\"productDetails\"\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv class=\"products-arrow show\"\u003e\n\u003cdiv class=\"next-product next-prev-buttons\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Fish Bazaar","offers":[{"title":"WP - 3200","offer_id":44377425018922,"sku":null,"price":732.0,"currency_code":"INR","in_stock":false},{"title":"WP - 3300","offer_id":44377425051690,"sku":null,"price":844.0,"currency_code":"INR","in_stock":false},{"title":"WP - 3400","offer_id":44377425084458,"sku":null,"price":956.0,"currency_code":"INR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0720\/9238\/5322\/files\/51nK_fevovL._SX522.jpg?v=1779732926"},{"product_id":"sobo-slim-filter-wp-408h-hang-on-filter","title":"Sobo WP-408H Slim Hang-On Aquarium Filter | up to 100L (2–3 ft) | Fish Bazaar","description":"\u003cp\u003eThe \u003cstrong\u003eSobo WP-408H slim hang-on aquarium filter\u003c\/strong\u003e is a compact, affordable hang-on-back (HOB) filter for small fish tanks up to roughly \u003cstrong\u003e100 litres (around 2 to 3 feet)\u003c\/strong\u003e, with a slim profile that takes up almost no space behind the tank. It hangs on the rim, cascades filtered water back in, and provides simple, effective 3-stage filtration — making it one of the best-value small aquarium filters available in India for nano and community tanks.\u003c\/p\u003e\n\n\u003ch2\u003eWhat is the Sobo WP-408H Filter?\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eShort answer:\u003c\/strong\u003e A slim, budget hang-on-back (HOB) aquarium filter for small tanks up to about 100 litres.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIn detail:\u003c\/strong\u003e The WP-408H clips onto the back rim of the tank with a slim body that barely protrudes, lifts water through a filter cartridge, and trickles it back over the surface. It is easy to install, easy to clean, and delivers approximately 680 litres per hour (check the listing for the exact rating). \u003cstrong\u003eFor example:\u003c\/strong\u003e on a 2–3 foot community or nano tank, the WP-408H keeps the water clear and the surface moving without the cost or bulk of a canister.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSlim hang-on design\u003c\/strong\u003e — takes up minimal space behind the tank.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e~680 LPH flow\u003c\/strong\u003e — good circulation for small tanks (verify on the listing).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3-stage filtration\u003c\/strong\u003e — mechanical, biological and chemical in the cartridge.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSurface agitation\u003c\/strong\u003e — the return flow aerates the water.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEasy maintenance\u003c\/strong\u003e — quick cartridge access for cleaning.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExcellent value\u003c\/strong\u003e — effective HOB filtration at a low price.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eBenefits\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eImmediate:\u003c\/strong\u003e Clear water and gentle surface circulation from day one, with simple hang-on installation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eShort-term:\u003c\/strong\u003e The filter media matures into a biological filter, keeping ammonia and nitrite at zero.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLong-term:\u003c\/strong\u003e Dependable, low-cost filtration for small tanks, with cheap and easy media changes.\u003c\/p\u003e\n\n\u003ch2\u003eHow It Works\u003c\/h2\u003e\n\u003cp\u003eThe pump lifts water through the cartridge — \u003cstrong\u003emechanical\u003c\/strong\u003e media traps debris, \u003cstrong\u003ebiological\u003c\/strong\u003e media grows the bacteria that convert toxic ammonia to nitrite and nitrate, and \u003cstrong\u003echemical\u003c\/strong\u003e media (carbon) polishes the water — then returns it over the surface. See \u003ca href=\"\/blogs\/news\/how-aquarium-filters-work\"\u003ehow aquarium filters work\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eWhich Tank Size Is the WP-408H For?\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eShort answer:\u003c\/strong\u003e Small tanks up to about 100 litres — roughly 2 to 3 feet.\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eTank length\u003c\/th\u003e\n\u003cth\u003eApprox. volume\u003c\/th\u003e\n\u003cth\u003eWP-408H suitability\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e1.5 ft\u003c\/td\u003e\n\u003ctd\u003e25–35 L\u003c\/td\u003e\n\u003ctd\u003eExcellent (nano)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2 ft\u003c\/td\u003e\n\u003ctd\u003e50–60 L\u003c\/td\u003e\n\u003ctd\u003eIdeal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2.5–3 ft\u003c\/td\u003e\n\u003ctd\u003e80–100 L\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3 ft+\u003c\/td\u003e\n\u003ctd\u003e100 L+\u003c\/td\u003e\n\u003ctd\u003eStep up to a larger HOB or canister\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eSuitable For\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eNano and small community tanks (guppies, tetras, platies)\u003c\/li\u003e\n\u003cli\u003eBeginner and budget setups\u003c\/li\u003e\n\u003cli\u003eKeepers who want a space-saving slim filter\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eNot Suitable For\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eTanks over 100 L — choose a larger HOB such as the \u003ca href=\"\/products\/seachem-tidal-55-hang-on-back-filter\"\u003eSeachem Tidal 55\u003c\/a\u003e or a canister\u003c\/li\u003e\n\u003cli\u003eHeavily-stocked or messy-fish tanks — limited media capacity\u003c\/li\u003e\n\u003cli\u003eRimless tanks where a HOB cannot hang securely\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSetup \u0026amp; Usage\u003c\/h2\u003e\n\u003cp\u003eHang the filter on the back rim, load and fit the cartridge, prime it by filling with tank water, and switch on. Rinse the media in old tank water every 2–4 weeks. Allow 4–6 weeks to cycle. See the \u003ca href=\"\/blogs\/news\/how-to-install-aquarium-filter\"\u003einstallation guide\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eSobo WP-408H (slim hang-on)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilter type\u003c\/td\u003e\n\u003ctd\u003eHang-on-back (HOB), slim\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSuitable tank size\u003c\/td\u003e\n\u003ctd\u003eup to ~100 L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlow rate\u003c\/td\u003e\n\u003ctd\u003e~680 LPH (verify on listing)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFiltration stages\u003c\/td\u003e\n\u003ctd\u003eMechanical, biological, chemical\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBest for\u003c\/td\u003e\n\u003ctd\u003eNano \u0026amp; small community tanks 2–3 ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eCommon Problems It Solves\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eLimited space:\u003c\/strong\u003e the slim body barely protrudes behind the tank. \u003cstrong\u003eTight budgets:\u003c\/strong\u003e effective HOB filtration at a low price. \u003cstrong\u003eCloudy water in small tanks:\u003c\/strong\u003e 3-stage filtration keeps it clear. \u003cstrong\u003eLow oxygen:\u003c\/strong\u003e the return flow agitates the surface.\u003c\/p\u003e\n\n\u003ch2\u003eSobo WP-408H vs Other Filters\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eFeature\u003c\/th\u003e\n\u003cth\u003eSobo WP-408H\u003c\/th\u003e\n\u003cth\u003eTop filter\u003c\/th\u003e\n\u003cth\u003ePremium HOB\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrice\u003c\/td\u003e\n\u003ctd\u003eVery affordable\u003c\/td\u003e\n\u003ctd\u003eVery affordable\u003c\/td\u003e\n\u003ctd\u003eMid\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProfile\u003c\/td\u003e\n\u003ctd\u003eSlim hang-on\u003c\/td\u003e\n\u003ctd\u003eOn lid\u003c\/td\u003e\n\u003ctd\u003eBulkier hang-on\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMedia capacity\u003c\/td\u003e\n\u003ctd\u003eLow–medium\u003c\/td\u003e\n\u003ctd\u003eMedium\u003c\/td\u003e\n\u003ctd\u003eHigh\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBest tank size\u003c\/td\u003e\n\u003ctd\u003eup to 100 L\u003c\/td\u003e\n\u003ctd\u003eup to 120 L\u003c\/td\u003e\n\u003ctd\u003eup to 300 L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eExpert Recommendation\u003c\/h2\u003e\n\u003cp\u003eFor a nano or small community tank where space and budget matter, the Sobo WP-408H is our top slim-HOB pick. Add a little \u003ca href=\"\/products\/tcws-bio-media\"\u003eTCWS Bio-Media\u003c\/a\u003e to boost biological capacity, and in warm Indian summers pair it with a \u003ca href=\"\/products\/air-pump-sobo-sb-228-mini-ac-dc\"\u003eSobo air pump\u003c\/a\u003e for extra oxygen.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat tank size is the Sobo WP-408H suitable for?\u003c\/h3\u003e\n\u003cp\u003eSmall tanks up to about 100 litres — roughly a 2 to 3 foot aquarium.\u003c\/p\u003e\n\u003ch3\u003eWhat is the flow rate of the WP-408H?\u003c\/h3\u003e\n\u003cp\u003eApproximately 680 litres per hour — please check the product listing for the exact rating.\u003c\/p\u003e\n\u003ch3\u003eIs the WP-408H a hang-on filter?\u003c\/h3\u003e\n\u003cp\u003eYes — it is a slim hang-on-back (HOB) filter that clips onto the rear rim of the tank.\u003c\/p\u003e\n\u003ch3\u003eIs the Sobo WP-408H good for beginners?\u003c\/h3\u003e\n\u003cp\u003eYes — it is simple, affordable and easy to maintain, making it a great first filter for small tanks.\u003c\/p\u003e\n\u003ch3\u003eDoes the WP-408H come with media?\u003c\/h3\u003e\n\u003cp\u003eYes, it includes a filter cartridge; you can add bio-media such as TCWS Bio-Media for more biological capacity.\u003c\/p\u003e\n\u003ch3\u003eHow often do I clean the WP-408H?\u003c\/h3\u003e\n\u003cp\u003eRinse the media in old tank water every 2–4 weeks; never under the tap, as chlorine kills the bacteria.\u003c\/p\u003e\n\u003ch3\u003eIs the WP-408H quiet?\u003c\/h3\u003e\n\u003cp\u003eYes, when primed and topped up; keep the water level correct so the pump does not run dry.\u003c\/p\u003e\n\u003ch3\u003eCan I use the WP-408H on a betta tank?\u003c\/h3\u003e\n\u003cp\u003eYes, on a small betta tank — baffle the outflow if the current is too strong, as bettas prefer gentle flow.\u003c\/p\u003e\n\u003ch3\u003eCan the WP-408H be the only filter in my tank?\u003c\/h3\u003e\n\u003cp\u003eYes, for small tanks up to about 100 litres it provides complete filtration on its own.\u003c\/p\u003e\n\u003ch3\u003eIs the Sobo WP-408H good value in India?\u003c\/h3\u003e\n\u003cp\u003eYes — it is an affordable, space-saving HOB, ideal for nano and small community tanks.\u003c\/p\u003e\n\u003ch3\u003eDo I need an air pump with the WP-408H?\u003c\/h3\u003e\n\u003cp\u003eNot usually, but in hot Indian summers an air pump adds extra oxygen.\u003c\/p\u003e\n\n\u003ch2\u003eRelated Products \u0026amp; Guides\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eStep up:\u003c\/strong\u003e \u003ca href=\"\/products\/seachem-tidal-55-hang-on-back-filter\"\u003eSeachem Tidal 55\u003c\/a\u003e or \u003ca href=\"\/products\/fluval-107-canister-filter-10-30-us-gal-40-130-l\"\u003eFluval 107\u003c\/a\u003e. \u003cstrong\u003eTop filter option:\u003c\/strong\u003e \u003ca href=\"\/products\/sobo-aquarium-top-filter-wp-880f-power-15w-f-max-650l-hr-power-aquarium-filter\"\u003eSobo WP-880F\u003c\/a\u003e. \u003cstrong\u003eMedia \u0026amp; aeration:\u003c\/strong\u003e \u003ca href=\"\/products\/tcws-bio-media\"\u003eTCWS Bio-Media\u003c\/a\u003e, \u003ca href=\"\/products\/air-pump-sobo-sb-228-mini-ac-dc\"\u003eSobo air pump\u003c\/a\u003e. \u003cstrong\u003eCollections:\u003c\/strong\u003e \u003ca href=\"\/collections\/aquarium-filter\"\u003eAquarium Filters\u003c\/a\u003e, \u003ca href=\"\/collections\/filters-filtration\"\u003eFilters \u0026amp; Filtration\u003c\/a\u003e. \u003cstrong\u003eGuides:\u003c\/strong\u003e \u003ca href=\"\/blogs\/news\/types-of-aquarium-filters\"\u003eTypes of Aquarium Filters\u003c\/a\u003e, \u003ca href=\"\/blogs\/news\/canister-vs-hob-vs-sponge\"\u003eCanister vs HOB vs Sponge\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eConclusion\u003c\/h2\u003e\n\u003cp\u003eThe Sobo WP-408H slim hang-on aquarium filter is a compact, affordable, easy-to-use choice for small tanks up to about 100 litres (2–3 ft). With a space-saving slim design and simple 3-stage filtration, it keeps nano and community tanks clear and healthy — one of the best-value small aquarium filters in India.\u003c\/p\u003e","brand":"Fish Bazaar","offers":[{"title":"Default Title","offer_id":44377425117226,"sku":null,"price":1606.0,"currency_code":"INR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0720\/9238\/5322\/files\/51R3kYJ8XeL._SX300_SY300_QL70_FMwebp.webp?v=1779732927"},{"product_id":"seacehm-tidal-110-hang-on-back-filter","title":"Seachem Tidal 110 Hang-On-Back Filter | up to 425L (4–5 ft+) | Fish Bazaar","description":"\u003cp\u003eThe \u003cstrong\u003eSeachem Tidal 110 hang-on-back aquarium filter\u003c\/strong\u003e is the most powerful HOB filter in Seachem's Tidal range, built for large fish tanks up to around \u003cstrong\u003e425 litres (roughly 4 to 5 feet and above)\u003c\/strong\u003e, delivering a powerful \u003cstrong\u003e2,000 litres per hour\u003c\/strong\u003e with a very large media basket and a built-in surface skimmer. From Seachem — the brand behind Matrix and Purigen — the Tidal 110 hangs on the back of your tank, sets up in minutes, and rivals a canister for media capacity, making it one of the best large hang-on-back filters available in India.\u003c\/p\u003e\n\n\u003ch2\u003eWhat is the Seachem Tidal 110 Filter?\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eShort answer:\u003c\/strong\u003e A high-output hang-on-back (HOB) aquarium filter for large tanks up to ~425 litres, with a very large media basket, self-priming pump and surface skimmer.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIn detail:\u003c\/strong\u003e The Tidal 110 is the flagship of Seachem's Tidal HOB range. It hangs on the rim and cascades filtered water back in, with a very large media basket that delivers canister-like capacity in a hang-on form. It self-primes, has fully adjustable flow, and includes a surface skimmer to clear the oily film on still water. \u003cstrong\u003eFor example:\u003c\/strong\u003e on a large 4–5 foot community or planted tank (around 300–425 L), the Tidal 110 powers through the bioload and keeps both the water and the surface clean — without the hoses and cabinet of a canister.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e2,000 LPH adjustable flow\u003c\/strong\u003e — the strongest flow in the Tidal range, for large tanks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVery large media basket\u003c\/strong\u003e — canister-rivalling capacity, fill it with the media you prefer.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt-in surface skimmer\u003c\/strong\u003e — removes surface film and improves gas exchange.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelf-priming pump\u003c\/strong\u003e — starts easily with no manual siphoning.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEasy maintenance\u003c\/strong\u003e — maintenance alert and tool-free media access.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeachem-engineered\u003c\/strong\u003e — from the brand behind Matrix and Purigen media.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eBenefits\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eImmediate:\u003c\/strong\u003e Strong, even circulation, a clean surface and clear water on a large tank from day one.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eShort-term:\u003c\/strong\u003e The very large media capacity matures into a powerful biological filter, keeping ammonia and nitrite at zero even on bigger, busier tanks.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLong-term:\u003c\/strong\u003e Canister-grade results with HOB convenience, for years, using only inexpensive media top-ups.\u003c\/p\u003e\n\n\u003ch2\u003eHow It Works\u003c\/h2\u003e\n\u003cp\u003eThe Tidal 110 draws water up through its very large media basket — \u003cstrong\u003emechanical\u003c\/strong\u003e foam traps debris, \u003cstrong\u003ebiological\u003c\/strong\u003e media such as \u003ca href=\"\/products\/seachem-matrix\"\u003eSeachem Matrix\u003c\/a\u003e grows the bacteria that convert toxic ammonia to nitrite and nitrate, and \u003cstrong\u003echemical\u003c\/strong\u003e media such as \u003ca href=\"\/products\/seachem-purigen-100ml\"\u003ePurigen\u003c\/a\u003e polishes the water — then returns it over the surface skimmer. See \u003ca href=\"\/blogs\/news\/how-aquarium-filters-work\"\u003ehow aquarium filters work\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eWhich Tank Size Is the Tidal 110 For?\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eShort answer:\u003c\/strong\u003e Large tanks up to around 425 litres — roughly 4 to 5 feet and above.\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eTank length\u003c\/th\u003e\n\u003cth\u003eApprox. volume\u003c\/th\u003e\n\u003cth\u003eTidal 110 suitability\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e4 ft\u003c\/td\u003e\n\u003ctd\u003e200–250 L\u003c\/td\u003e\n\u003ctd\u003eGood (consider the \u003ca href=\"\/products\/seachem-tidal-75-hang-on-back-filter\"\u003eTidal 75\u003c\/a\u003e)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5 ft\u003c\/td\u003e\n\u003ctd\u003e350–400 L\u003c\/td\u003e\n\u003ctd\u003eIdeal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5–6 ft\u003c\/td\u003e\n\u003ctd\u003eup to ~425 L\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAbove 425 L\u003c\/td\u003e\n\u003ctd\u003e425 L+\u003c\/td\u003e\n\u003ctd\u003eStep up to a \u003ca href=\"\/products\/fluval-307-canister-filter-40-70-us-gal-90-330-l\"\u003ecanister filter\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eSuitable For\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eLarge community tanks of tetras, guppies, mollies, gouramis and barbs\u003c\/li\u003e\n\u003cli\u003ePlanted tanks (the surface skimmer keeps the surface clean)\u003c\/li\u003e\n\u003cli\u003eCichlid and goldfish tanks within its size range (strong flow handles waste)\u003c\/li\u003e\n\u003cli\u003eKeepers who want canister-level capacity without a cabinet\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eNot Suitable For\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eTanks over ~425 L — choose a canister such as the \u003ca href=\"\/products\/fluval-407-canister-filter-50-100-us-gal-150-500-l\"\u003eFluval 407\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003eNano and betta tanks — the flow is far too strong\u003c\/li\u003e\n\u003cli\u003eRimless tanks where a HOB cannot hang securely\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSetup \u0026amp; Usage\u003c\/h2\u003e\n\u003cp\u003eHang the filter on the back rim, fill the media basket (mechanical → biological → chemical), prime it, and switch on. Set the flow and adjust the surface skimmer. Allow 4–6 weeks to cycle. Rinse the mechanical media in old tank water every 2–4 weeks. See the \u003ca href=\"\/blogs\/news\/how-to-install-aquarium-filter\"\u003einstallation guide\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eSeachem Tidal 110\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilter type\u003c\/td\u003e\n\u003ctd\u003eHang-on-back (HOB)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSuitable tank size\u003c\/td\u003e\n\u003ctd\u003eup to ~425 L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlow rate\u003c\/td\u003e\n\u003ctd\u003e2,000 LPH (adjustable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSurface skimmer\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePriming\u003c\/td\u003e\n\u003ctd\u003eSelf-priming\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBest for\u003c\/td\u003e\n\u003ctd\u003eLarge community, planted \u0026amp; cichlid tanks 4–5 ft+\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eCommon Problems It Solves\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eUnderpowered HOBs on big tanks:\u003c\/strong\u003e 2,000 LPH and a huge basket handle large tanks. \u003cstrong\u003eOily surface film:\u003c\/strong\u003e the built-in skimmer clears it and improves oxygenation. \u003cstrong\u003eCanister hassle:\u003c\/strong\u003e gives big-filter results without hoses or a cabinet. \u003cstrong\u003eHeavy bioload:\u003c\/strong\u003e strong flow and capacity keep busy tanks clear.\u003c\/p\u003e\n\n\u003ch2\u003eSeachem Tidal 110 vs Other Filters\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eFeature\u003c\/th\u003e\n\u003cth\u003eTidal 110\u003c\/th\u003e\n\u003cth\u003eTidal 75\u003c\/th\u003e\n\u003cth\u003eCanister\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlow rate\u003c\/td\u003e\n\u003ctd\u003e2,000 LPH\u003c\/td\u003e\n\u003ctd\u003e1,500 LPH\u003c\/td\u003e\n\u003ctd\u003e550–3,500 LPH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax tank size\u003c\/td\u003e\n\u003ctd\u003e~425 L\u003c\/td\u003e\n\u003ctd\u003e300 L\u003c\/td\u003e\n\u003ctd\u003e100 L+\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSurface skimmer\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003ctd\u003eOptional\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSetup\u003c\/td\u003e\n\u003ctd\u003eHang-on, easy\u003c\/td\u003e\n\u003ctd\u003eHang-on, easy\u003c\/td\u003e\n\u003ctd\u003eMore involved\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eExpert Recommendation\u003c\/h2\u003e\n\u003cp\u003eFor a large 4–5 foot community, planted or cichlid tank where you want canister capacity without the cabinet, the Seachem Tidal 110 is our top large-HOB pick. Fill it with \u003ca href=\"\/products\/seachem-matrix\"\u003eSeachem Matrix\u003c\/a\u003e or \u003ca href=\"\/products\/tcws-bio-media\"\u003eTCWS Bio-Media\u003c\/a\u003e and add \u003ca href=\"\/products\/seachem-purigen-100ml\"\u003ePurigen\u003c\/a\u003e for show-quality clarity.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat tank size is the Seachem Tidal 110 suitable for?\u003c\/h3\u003e\n\u003cp\u003eLarge tanks up to around 425 litres — roughly 4 to 5 feet and above. It is ideal for large community and planted tanks.\u003c\/p\u003e\n\u003ch3\u003eWhat is the flow rate of the Tidal 110?\u003c\/h3\u003e\n\u003cp\u003e2,000 litres per hour — the strongest in the Tidal range — and it is fully adjustable.\u003c\/p\u003e\n\u003ch3\u003eDoes the Tidal 110 have a surface skimmer?\u003c\/h3\u003e\n\u003cp\u003eYes — a built-in surface skimmer removes the oily film and improves gas exchange.\u003c\/p\u003e\n\u003ch3\u003eTidal 75 vs 110 — which should I choose?\u003c\/h3\u003e\n\u003cp\u003eChoose the Tidal 75 for tanks up to 300 L and the Tidal 110 for tanks up to around 425 L or heavier stocking.\u003c\/p\u003e\n\u003ch3\u003eIs the Tidal 110 as good as a canister?\u003c\/h3\u003e\n\u003cp\u003eIt rivals a canister for media capacity with much easier setup; for tanks over ~425 L or inline CO2, a canister is still better.\u003c\/p\u003e\n\u003ch3\u003eDoes the Tidal 110 come with media?\u003c\/h3\u003e\n\u003cp\u003eYes, it ships with Seachem media; add extra Matrix or TCWS Bio-Media to fill the large basket.\u003c\/p\u003e\n\u003ch3\u003eIs the Tidal 110 good for cichlids?\u003c\/h3\u003e\n\u003cp\u003eYes — its strong flow and large capacity suit cichlid and goldfish tanks within its size range.\u003c\/p\u003e\n\u003ch3\u003eHow often do I clean the Tidal 110?\u003c\/h3\u003e\n\u003cp\u003eRinse the mechanical media in old tank water every 2–4 weeks; the maintenance alert helps you time it.\u003c\/p\u003e\n\u003ch3\u003eDoes the Tidal 110 self-prime?\u003c\/h3\u003e\n\u003cp\u003eYes — it self-primes, so there is no manual siphoning to start it.\u003c\/p\u003e\n\u003ch3\u003eIs the Tidal 110 quiet?\u003c\/h3\u003e\n\u003cp\u003eYes — it runs quietly for its power when primed and the water level is correct.\u003c\/p\u003e\n\u003ch3\u003eIs the Tidal 110 good for planted tanks?\u003c\/h3\u003e\n\u003cp\u003eYes — the surface skimmer keeps the surface clean and the adjustable flow suits large planted layouts.\u003c\/p\u003e\n\u003ch3\u003eIs the Seachem Tidal 110 worth it in India?\u003c\/h3\u003e\n\u003cp\u003eYes — its capacity, power and skimmer make it excellent value for large tanks among hang-on-back filters.\u003c\/p\u003e\n\u003ch3\u003eDoes the Tidal 110 work on marine tanks?\u003c\/h3\u003e\n\u003cp\u003eYes, it suits large freshwater and marine setups within its size range.\u003c\/p\u003e\n\n\u003ch2\u003eRelated Products \u0026amp; Guides\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eRelated filters:\u003c\/strong\u003e \u003ca href=\"\/products\/seachem-tidal-75-hang-on-back-filter\"\u003eSeachem Tidal 75\u003c\/a\u003e and \u003ca href=\"\/products\/seachem-tidal-55-hang-on-back-filter\"\u003eTidal 55\u003c\/a\u003e (smaller), \u003ca href=\"\/products\/fluval-307-canister-filter-40-70-us-gal-90-330-l\"\u003eFluval 307 canister\u003c\/a\u003e. \u003cstrong\u003eRecommended media:\u003c\/strong\u003e \u003ca href=\"\/products\/seachem-matrix\"\u003eSeachem Matrix\u003c\/a\u003e, \u003ca href=\"\/products\/tcws-bio-media\"\u003eTCWS Bio-Media\u003c\/a\u003e, \u003ca href=\"\/products\/seachem-purigen-100ml\"\u003ePurigen\u003c\/a\u003e. \u003cstrong\u003eCollections:\u003c\/strong\u003e \u003ca href=\"\/collections\/seachem\"\u003eSeachem\u003c\/a\u003e, \u003ca href=\"\/collections\/aquarium-filter\"\u003eAquarium Filters\u003c\/a\u003e. \u003cstrong\u003eGuides:\u003c\/strong\u003e \u003ca href=\"\/blogs\/news\/canister-vs-hob-vs-sponge\"\u003eCanister vs HOB vs Sponge\u003c\/a\u003e, \u003ca href=\"\/blogs\/news\/most-powerful-aquarium-filter\"\u003eMost Powerful Aquarium Filters\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eConclusion\u003c\/h2\u003e\n\u003cp\u003eThe Seachem Tidal 110 hang-on-back aquarium filter is the most powerful HOB in the Tidal range — a high-capacity, easy-to-use choice for large tanks up to around 425 litres (4–5 ft+). With 2,000 LPH adjustable flow, a very large media basket and a built-in surface skimmer, it brings canister-grade filtration to a convenient HOB — one of the best large hang-on-back filters in India.\u003c\/p\u003e","brand":"Seachem","offers":[{"title":"Default Title","offer_id":44378685603882,"sku":null,"price":10500.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0720\/9238\/5322\/files\/SeachemTidel110.jpg?v=1779801020"},{"product_id":"seachem-tidal-75-hang-on-back-filter","title":"Seachem Tidal 75 Hang-On-Back Filter | up to 300L (4–5 ft) | Fish Bazaar","description":"\u003cp\u003eThe \u003cstrong\u003eSeachem Tidal 75 hang-on-back aquarium filter\u003c\/strong\u003e is a powerful, premium HOB filter for fish tanks up to \u003cstrong\u003e300 litres (roughly 4 to 5 feet)\u003c\/strong\u003e, delivering \u003cstrong\u003e1,500 litres per hour\u003c\/strong\u003e with a large media basket and a built-in surface skimmer. Made by Seachem,, the brand behind Matrix and Purigen, the Tidal 75 hangs on the back of your tank, sets up in minutes, and offers far more media capacity than ordinary hang-on filters, making it one of the best HOB filters available in India for larger community and planted tanks.\u003c\/p\u003e\n\u003ch2\u003eWhat is the Seachem Tidal 75 Filter?\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eShort answer:\u003c\/strong\u003e A high-capacity hang-on-back (HOB) aquarium filter for tanks up to 300 litres, with a large media basket, self-priming pump and surface skimmer.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIn detail:\u003c\/strong\u003e The Tidal 75 is the mid model of Seachem's acclaimed Tidal HOB range. It hangs on the rim and cascades filtered water back in, with a large media basket that gives canister-like capacity in a hang-on form. It self-primes, has fully adjustable flow, and includes a surface skimmer to clear the oily film on still water. \u003cstrong\u003eFor example,\u003c\/strong\u003e on a 4–5 foot community or planted tank (around 200–300 L), the Tidal 75 keeps the water clear and the surface clean while being far easier to maintain than a canister.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e1,500 LPH adjustable flow\u003c\/strong\u003e - strong, controllable circulation for tanks up to 300 L.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLarge media basket\u003c\/strong\u003e - exceptional capacity for a HOB, fill it with the media you prefer.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt-in surface skimmer\u003c\/strong\u003e - removes surface film and improves gas exchange.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelf-priming pump\u003c\/strong\u003e - starts easily with no manual siphoning.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEasy maintenance\u003c\/strong\u003e - maintenance alert and tool-free media access.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeachem-engineered\u003c\/strong\u003e - from the brand behind Matrix and Purigen media.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eBenefits\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eImmediate:\u003c\/strong\u003e Clear water, a clean surface and strong adjustable flow from day one.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eShort-term:\u003c\/strong\u003e The large media capacity matures into a powerful biological filter, keeping ammonia and nitrite at zero on bigger tanks.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLong-term:\u003c\/strong\u003e Canister-grade results with HOB convenience, for years, using only inexpensive media top-ups.\u003c\/p\u003e\n\u003ch2\u003eHow It Works\u003c\/h2\u003e\n\u003cp\u003eThe Tidal 75 draws water up through its large media basket, \u003cstrong\u003emechanical\u003c\/strong\u003e foam traps debris, \u003cstrong\u003ebiological\u003c\/strong\u003e media such as \u003ca href=\"\/products\/seachem-matrix\"\u003eSeachem Matrix\u003c\/a\u003e grows the bacteria that convert toxic ammonia to nitrite and nitrate, and \u003cstrong\u003echemical\u003c\/strong\u003e media such as \u003ca href=\"\/products\/seachem-purigen-100ml\"\u003ePurigen\u003c\/a\u003e polishes the water, then returns it over the surface skimmer. See \u003ca href=\"\/blogs\/news\/how-aquarium-filters-work\"\u003ehow aquarium filters work\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch2\u003eWhich Tank Size Is the Tidal 75 For?\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eShort answer:\u003c\/strong\u003e Tanks up to 300 litres, roughly 4 to 5 foot aquariums.\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eTank length\u003c\/th\u003e\n\u003cth\u003eApprox. volume\u003c\/th\u003e\n\u003cth\u003eTidal 75 suitability\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e3 ft\u003c\/td\u003e\n\u003ctd\u003e100–120 L\u003c\/td\u003e\n\u003ctd\u003eGood (consider the \u003ca href=\"\/products\/seachem-tidal-55-hang-on-back-filter\"\u003eTidal 55\u003c\/a\u003e)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e4 ft\u003c\/td\u003e\n\u003ctd\u003e200–250 L\u003c\/td\u003e\n\u003ctd\u003eIdeal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5 ft\u003c\/td\u003e\n\u003ctd\u003e300 L\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5 ft+\u003c\/td\u003e\n\u003ctd\u003e300 L+\u003c\/td\u003e\n\u003ctd\u003eStep up to the \u003ca href=\"\/products\/seacehm-tidal-110-hang-on-back-filter\"\u003eTidal 110\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eSuitable For\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eLarger community tanks of tetras, guppies, mollies, gouramis and barbs\u003c\/li\u003e\n\u003cli\u003ePlanted tanks (the surface skimmer keeps the surface clean)\u003c\/li\u003e\n\u003cli\u003eLightly-stocked cichlid and goldfish tanks within its size range\u003c\/li\u003e\n\u003cli\u003eKeepers who want big media capacity without a canister or cabinet\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eNot Suitable For\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eTanks over 300 L, choose the \u003ca href=\"\/products\/seacehm-tidal-110-hang-on-back-filter\"\u003eTidal 110\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003eNano and betta tanks, the flow is strong; a small internal or sponge filter is gentler\u003c\/li\u003e\n\u003cli\u003eRimless tanks where a HOB cannot hang securely\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSetup \u0026amp; Usage\u003c\/h2\u003e\n\u003cp\u003eHang the filter on the back rim, fill the media basket (mechanical → biological → chemical), prime it, and switch on. Set the flow and adjust the surface skimmer. Allow 4–6 weeks to cycle. Rinse the mechanical media in old tank water every 2–4 weeks. See the \u003ca href=\"\/blogs\/news\/how-to-install-aquarium-filter\"\u003einstallation guide\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eSeachem Tidal 75\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilter type\u003c\/td\u003e\n\u003ctd\u003eHang-on-back (HOB)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSuitable tank size\u003c\/td\u003e\n\u003ctd\u003eup to 300 L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlow rate\u003c\/td\u003e\n\u003ctd\u003e1,500 LPH (adjustable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSurface skimmer\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePriming\u003c\/td\u003e\n\u003ctd\u003eSelf-priming\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBest for\u003c\/td\u003e\n\u003ctd\u003eLarger community \u0026amp; planted tanks 4–5 ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eCommon Problems It Solves\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eLow media capacity of cheap HOBs:\u003c\/strong\u003e the large basket holds far more media. \u003cstrong\u003eOily surface film:\u003c\/strong\u003e the built-in skimmer clears it and improves oxygenation. \u003cstrong\u003eCanister hassle:\u003c\/strong\u003e gives big-filter results without hoses or a cabinet. \u003cstrong\u003eCloudy water on bigger tanks:\u003c\/strong\u003e strong 3-stage filtration keeps the tank clear.\u003c\/p\u003e\n\u003ch2\u003eSeachem Tidal 75 vs Other Filters\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eFeature\u003c\/th\u003e\n\u003cth\u003eTidal 75\u003c\/th\u003e\n\u003cth\u003eTidal 55\u003c\/th\u003e\n\u003cth\u003eCanister\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlow rate\u003c\/td\u003e\n\u003ctd\u003e1,500 LPH\u003c\/td\u003e\n\u003ctd\u003e1,000 LPH\u003c\/td\u003e\n\u003ctd\u003e550–3,500 LPH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax tank size\u003c\/td\u003e\n\u003ctd\u003e300 L\u003c\/td\u003e\n\u003ctd\u003e200 L\u003c\/td\u003e\n\u003ctd\u003e100 L+\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSurface skimmer\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003ctd\u003eOptional\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSetup\u003c\/td\u003e\n\u003ctd\u003eHang-on, easy\u003c\/td\u003e\n\u003ctd\u003eHang-on, easy\u003c\/td\u003e\n\u003ctd\u003eMore involved\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eExpert Recommendation\u003c\/h2\u003e\n\u003cp\u003eFor a 4–5 foot community or planted tank, the Seachem Tidal 75 is our top larger-HOB pick — canister-like capacity and a surface skimmer in an easy hang-on filter. Fill it with \u003ca href=\"\/products\/seachem-matrix\"\u003eSeachem Matrix\u003c\/a\u003e or \u003ca href=\"\/products\/tcws-bio-media\"\u003eTCWS Bio-Media\u003c\/a\u003e and add \u003ca href=\"\/products\/seachem-purigen-100ml\"\u003ePurigen\u003c\/a\u003e for show-quality clarity.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat tank size is the Seachem Tidal 75 suitable for?\u003c\/h3\u003e\n\u003cp\u003eTanks up to 300 litres, roughly a 4 to 5 foot aquarium. It is ideal for larger community and planted tanks.\u003c\/p\u003e\n\u003ch3\u003eWhat is the flow rate of the Tidal 75?\u003c\/h3\u003e\n\u003cp\u003e1,500 litres per hour, fully adjustable so you can soften it for delicate fish.\u003c\/p\u003e\n\u003ch3\u003eDoes the Tidal 75 have a surface skimmer?\u003c\/h3\u003e\n\u003cp\u003eYes, a built-in surface skimmer removes the oily film and improves gas exchange.\u003c\/p\u003e\n\u003ch3\u003eTidal 55 vs 75 vs 110, which should I choose?\u003c\/h3\u003e\n\u003cp\u003eThe Tidal 55 suits tanks up to 200 L, the 75 up to 300 L and the 110 up to around 425 L. Choose by tank size.\u003c\/p\u003e\n\u003ch3\u003eDoes the Tidal 75 come with media?\u003c\/h3\u003e\n\u003cp\u003eYes, it ships with Seachem media; add extra Matrix or TCWS Bio-Media to fill the large basket.\u003c\/p\u003e\n\u003ch3\u003eIs the Tidal 75 good for planted tanks?\u003c\/h3\u003e\n\u003cp\u003eYes, the surface skimmer keeps the surface clean and the adjustable flow suits planted layouts.\u003c\/p\u003e\n\u003ch3\u003eHow often do I clean the Tidal 75?\u003c\/h3\u003e\n\u003cp\u003eRinse the mechanical media in old tank water every 2–4 weeks; the maintenance alert helps you time it.\u003c\/p\u003e\n\u003ch3\u003eCan I use the Tidal 75 on a goldfish tank?\u003c\/h3\u003e\n\u003cp\u003eYes, for lightly-stocked goldfish within its size range; the strong flow and capacity handle the waste well.\u003c\/p\u003e\n\u003ch3\u003eDoes the Tidal 75 self-prime?\u003c\/h3\u003e\n\u003cp\u003eYes, it self-primes, so there is no manual siphoning to start it.\u003c\/p\u003e\n\u003ch3\u003eIs the Tidal 75 quiet?\u003c\/h3\u003e\n\u003cp\u003eYes, it runs quietly when primed and the water level is correct.\u003c\/p\u003e\n\u003ch3\u003eIs the Tidal 75 better than a canister?\u003c\/h3\u003e\n\u003cp\u003eIt offers much of a canister's capacity with easier setup; for tanks over 300 L or inline CO2, a canister is still better.\u003c\/p\u003e\n\u003ch3\u003eIs the Seachem Tidal 75 worth it in India?\u003c\/h3\u003e\n\u003cp\u003eYes, its capacity, skimmer and build quality make it excellent value among hang-on-back filters.\u003c\/p\u003e\n\u003ch3\u003eDoes the Tidal 75 work on marine tanks?\u003c\/h3\u003e\n\u003cp\u003eYes, it suits freshwater and marine setups within its size range.\u003c\/p\u003e\n\u003ch2\u003eRelated Products \u0026amp; Guides\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eRelated filters:\u003c\/strong\u003e \u003ca href=\"\/products\/seachem-tidal-55-hang-on-back-filter\"\u003eSeachem Tidal 55\u003c\/a\u003e (smaller) and \u003ca href=\"\/products\/seacehm-tidal-110-hang-on-back-filter\"\u003eTidal 110\u003c\/a\u003e (larger), \u003ca href=\"\/products\/fluval-c4-hang-on-back-filter\"\u003eFluval C-Series HOB\u003c\/a\u003e. \u003cstrong\u003eRecommended media:\u003c\/strong\u003e \u003ca href=\"\/products\/seachem-matrix\"\u003eSeachem Matrix\u003c\/a\u003e, \u003ca href=\"\/products\/tcws-bio-media\"\u003eTCWS Bio-Media\u003c\/a\u003e, \u003ca href=\"\/products\/seachem-purigen-100ml\"\u003ePurigen\u003c\/a\u003e. \u003cstrong\u003eCollections:\u003c\/strong\u003e \u003ca href=\"\/collections\/seachem\"\u003eSeachem\u003c\/a\u003e, \u003ca href=\"\/collections\/aquarium-filter\"\u003eAquarium Filters\u003c\/a\u003e. \u003cstrong\u003eGuides:\u003c\/strong\u003e \u003ca href=\"\/blogs\/news\/canister-vs-hob-vs-sponge\"\u003eCanister vs HOB vs Sponge\u003c\/a\u003e, \u003ca href=\"\/blogs\/news\/aquarium-filter-media-guide\"\u003eFilter Media Guide\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch2\u003eConclusion\u003c\/h2\u003e\n\u003cp\u003eThe Seachem Tidal 75 hang-on-back aquarium filter is a powerful, high-capacity, easy-to-use choice for tanks up to 300 litres (4–5 ft). With 1,500 LPH adjustable flow, a large media basket and a built-in surface skimmer, it brings canister-grade filtration to a convenient HOB — one of the best hang-on-back filters in India for larger tanks.\u003c\/p\u003e","brand":"Seachem","offers":[{"title":"Default Title","offer_id":44378685636650,"sku":null,"price":8999.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0720\/9238\/5322\/files\/SeachemTidel75.jpg?v=1779801022"},{"product_id":"seachem-tidal-55-hang-on-back-filter","title":"Seachem Tidal 55 Hang-On-Back Filter | up to 200L (3–4 ft) | Fish Bazaar","description":"\u003cp\u003eThe \u003cstrong\u003eSeachem Tidal 55 hang-on-back aquarium filter\u003c\/strong\u003e is a premium HOB filter for fish tanks up to \u003cstrong\u003e200 litres (roughly 3 to 4 feet)\u003c\/strong\u003e, delivering a powerful \u003cstrong\u003e1,000 litres per hour\u003c\/strong\u003e with a large media basket and a built-in surface skimmer. Designed by Seachem, the brand behind the gold-standard Matrix and Purigen media, the Tidal 55 hangs on the back of your tank, is quick to set up and maintain, and offers far more media capacity than ordinary hang-on filters — making it one of the best HOB filters available in India for community and planted tanks.\u003c\/p\u003e\n\n\u003ch2\u003eWhat is the Seachem Tidal 55 Filter?\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eShort answer:\u003c\/strong\u003e A high-capacity hang-on-back (HOB) aquarium filter for tanks up to 200 litres, with a large single media basket, self-priming pump and surface skimmer.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIn detail:\u003c\/strong\u003e The Tidal 55 hangs on the rim at the back of the tank and cascades filtered water back in. Its standout feature is an unusually large media basket that you fill with your choice of media, giving canister-like capacity in a HOB form. It self-primes, has fully adjustable flow, and includes a surface skimmer to remove the oily film that builds on still water. \u003cstrong\u003eFor example:\u003c\/strong\u003e on a 3–4 foot community tank (around 120–200 L), the Tidal 55 keeps the water clear and the surface clean while being far easier to maintain than a canister.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e1,000 LPH adjustable flow\u003c\/strong\u003e — strong, controllable circulation for tanks up to 200 L.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLarge media basket\u003c\/strong\u003e — exceptional capacity for a HOB, fill it with the media you prefer.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt-in surface skimmer\u003c\/strong\u003e — removes the surface film and improves gas exchange.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelf-priming pump\u003c\/strong\u003e — starts easily with no manual siphoning.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEasy maintenance\u003c\/strong\u003e — a maintenance-alert and tool-free media access make cleaning simple.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeachem-engineered\u003c\/strong\u003e — from the brand behind Matrix and Purigen media.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eBenefits\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eImmediate:\u003c\/strong\u003e Clear water, a clean surface and strong adjustable flow from day one, with simple hang-on installation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eShort-term:\u003c\/strong\u003e The large media capacity matures into a powerful biological filter, keeping ammonia and nitrite at zero.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLong-term:\u003c\/strong\u003e Canister-grade results with HOB convenience, for years, using only inexpensive media top-ups.\u003c\/p\u003e\n\n\u003ch2\u003eHow It Works\u003c\/h2\u003e\n\u003cp\u003eThe Tidal 55 draws water up through its large media basket — \u003cstrong\u003emechanical\u003c\/strong\u003e foam traps debris, \u003cstrong\u003ebiological\u003c\/strong\u003e media such as \u003ca href=\"\/products\/seachem-matrix\"\u003eSeachem Matrix\u003c\/a\u003e grows the bacteria that convert toxic ammonia to nitrite and nitrate, and \u003cstrong\u003echemical\u003c\/strong\u003e media such as \u003ca href=\"\/products\/seachem-purigen-100ml\"\u003ePurigen\u003c\/a\u003e polishes the water — then returns it over the surface skimmer. See \u003ca href=\"\/blogs\/news\/how-aquarium-filters-work\"\u003ehow aquarium filters work\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eWhich Tank Size Is the Tidal 55 For?\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eShort answer:\u003c\/strong\u003e Tanks up to 200 litres — roughly 3 to 4 foot aquariums.\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eTank length\u003c\/th\u003e\n\u003cth\u003eApprox. volume\u003c\/th\u003e\n\u003cth\u003eTidal 55 suitability\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2 ft\u003c\/td\u003e\n\u003ctd\u003e50–60 L\u003c\/td\u003e\n\u003ctd\u003eGood (turn flow down)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3 ft\u003c\/td\u003e\n\u003ctd\u003e100–120 L\u003c\/td\u003e\n\u003ctd\u003eIdeal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3.5–4 ft\u003c\/td\u003e\n\u003ctd\u003e150–200 L\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e4 ft+\u003c\/td\u003e\n\u003ctd\u003e200 L+\u003c\/td\u003e\n\u003ctd\u003eStep up to the \u003ca href=\"\/products\/seachem-tidal-75-hang-on-back-filter\"\u003eTidal 75\u003c\/a\u003e or \u003ca href=\"\/products\/seacehm-tidal-110-hang-on-back-filter\"\u003e110\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eSuitable For\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eCommunity tanks of tetras, guppies, mollies, gouramis and barbs\u003c\/li\u003e\n\u003cli\u003ePlanted tanks (the surface skimmer keeps the surface clean)\u003c\/li\u003e\n\u003cli\u003eKeepers who want big media capacity without a canister or cabinet\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eNot Suitable For\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eTanks over 200 L — choose the \u003ca href=\"\/products\/seachem-tidal-75-hang-on-back-filter\"\u003eTidal 75\u003c\/a\u003e or \u003ca href=\"\/products\/seacehm-tidal-110-hang-on-back-filter\"\u003eTidal 110\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003eNano and betta tanks under 50 L — the flow may be strong; a small internal or sponge filter is gentler\u003c\/li\u003e\n\u003cli\u003eRimless tanks where a HOB cannot hang securely\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSetup \u0026amp; Usage\u003c\/h2\u003e\n\u003cp\u003eHang the filter on the back rim, fill the media basket (mechanical → biological → chemical), prime it, and switch on. Set the flow and adjust the surface skimmer. Allow 4–6 weeks to cycle. Rinse the mechanical media in old tank water every 2–4 weeks. See the \u003ca href=\"\/blogs\/news\/how-to-install-aquarium-filter\"\u003einstallation guide\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eSeachem Tidal 55\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilter type\u003c\/td\u003e\n\u003ctd\u003eHang-on-back (HOB)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSuitable tank size\u003c\/td\u003e\n\u003ctd\u003eup to 200 L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlow rate\u003c\/td\u003e\n\u003ctd\u003e1,000 LPH (adjustable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSurface skimmer\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePriming\u003c\/td\u003e\n\u003ctd\u003eSelf-priming\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBest for\u003c\/td\u003e\n\u003ctd\u003eCommunity \u0026amp; planted tanks 3–4 ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eCommon Problems It Solves\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eLow media capacity of cheap HOBs:\u003c\/strong\u003e the large basket holds far more media. \u003cstrong\u003eOily surface film:\u003c\/strong\u003e the built-in skimmer clears it and improves oxygenation. \u003cstrong\u003eCanister hassle:\u003c\/strong\u003e gives big-filter results without hoses or a cabinet. \u003cstrong\u003eCloudy water:\u003c\/strong\u003e 3-stage filtration keeps the tank clear.\u003c\/p\u003e\n\n\u003ch2\u003eSeachem Tidal 55 vs Other Filters\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eFeature\u003c\/th\u003e\n\u003cth\u003eTidal 55\u003c\/th\u003e\n\u003cth\u003eBasic HOB \/ top filter\u003c\/th\u003e\n\u003cth\u003eCanister\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMedia capacity\u003c\/td\u003e\n\u003ctd\u003eVery high (for a HOB)\u003c\/td\u003e\n\u003ctd\u003eLow\u003c\/td\u003e\n\u003ctd\u003eHighest\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSurface skimmer\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003ctd\u003eOptional\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSetup\u003c\/td\u003e\n\u003ctd\u003eHang-on, easy\u003c\/td\u003e\n\u003ctd\u003eEasy\u003c\/td\u003e\n\u003ctd\u003eMore involved\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBest tank size\u003c\/td\u003e\n\u003ctd\u003eup to 200 L\u003c\/td\u003e\n\u003ctd\u003eup to ~120 L\u003c\/td\u003e\n\u003ctd\u003e100 L+\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eExpert Recommendation\u003c\/h2\u003e\n\u003cp\u003eFor a 3–4 foot community or planted tank, the Seachem Tidal 55 is our top HOB pick — it brings canister-like media capacity and a surface skimmer to an easy hang-on filter. Fill it with \u003ca href=\"\/products\/seachem-matrix\"\u003eSeachem Matrix\u003c\/a\u003e or \u003ca href=\"\/products\/tcws-bio-media\"\u003eTCWS Bio-Media\u003c\/a\u003e for biological filtration and add \u003ca href=\"\/products\/seachem-purigen-100ml\"\u003ePurigen\u003c\/a\u003e for show-quality clarity.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat tank size is the Seachem Tidal 55 suitable for?\u003c\/h3\u003e\n\u003cp\u003eTanks up to 200 litres — roughly a 3 to 4 foot aquarium. It is ideal for community and planted tanks.\u003c\/p\u003e\n\u003ch3\u003eWhat is the flow rate of the Tidal 55?\u003c\/h3\u003e\n\u003cp\u003e1,000 litres per hour, and it is fully adjustable so you can soften it for delicate fish.\u003c\/p\u003e\n\u003ch3\u003eDoes the Tidal 55 have a surface skimmer?\u003c\/h3\u003e\n\u003cp\u003eYes — a built-in surface skimmer removes the oily film and improves gas exchange.\u003c\/p\u003e\n\u003ch3\u003eTidal 55 vs 75 vs 110 — which should I choose?\u003c\/h3\u003e\n\u003cp\u003eThe Tidal 55 suits tanks up to 200 L, the 75 up to 300 L and the 110 up to around 425 L. Choose by tank size.\u003c\/p\u003e\n\u003ch3\u003eDoes the Tidal 55 come with media?\u003c\/h3\u003e\n\u003cp\u003eYes, it ships with Seachem media; many keepers add extra Matrix or TCWS Bio-Media to fill the large basket.\u003c\/p\u003e\n\u003ch3\u003eIs the Tidal 55 good for planted tanks?\u003c\/h3\u003e\n\u003cp\u003eYes — the surface skimmer keeps the surface clean, and the adjustable flow suits planted layouts.\u003c\/p\u003e\n\u003ch3\u003eHow often do I clean the Tidal 55?\u003c\/h3\u003e\n\u003cp\u003eRinse the mechanical media in old tank water every 2–4 weeks; the maintenance alert helps you time it.\u003c\/p\u003e\n\u003ch3\u003eIs the Tidal 55 quiet?\u003c\/h3\u003e\n\u003cp\u003eYes — it runs quietly when primed and the water level is correct.\u003c\/p\u003e\n\u003ch3\u003eCan I use the Tidal 55 on a betta tank?\u003c\/h3\u003e\n\u003cp\u003eOn a larger betta tank, yes — turn the flow right down or baffle the outflow, as bettas prefer gentle current.\u003c\/p\u003e\n\u003ch3\u003eDoes the Tidal 55 self-prime?\u003c\/h3\u003e\n\u003cp\u003eYes — it self-primes, so there is no manual siphoning to start it.\u003c\/p\u003e\n\u003ch3\u003eIs the Tidal 55 better than a canister?\u003c\/h3\u003e\n\u003cp\u003eIt offers much of a canister's capacity with easier setup; for tanks over 200 L or planted aquascapes needing inline CO2, a canister is still better.\u003c\/p\u003e\n\u003ch3\u003eIs the Seachem Tidal 55 worth it in India?\u003c\/h3\u003e\n\u003cp\u003eYes — its capacity, skimmer and build quality make it excellent value among hang-on-back filters.\u003c\/p\u003e\n\u003ch3\u003eDoes the Tidal 55 work on marine tanks?\u003c\/h3\u003e\n\u003cp\u003eYes, it suits freshwater and marine setups within its size range.\u003c\/p\u003e\n\n\u003ch2\u003eRelated Products \u0026amp; Guides\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eRelated filters:\u003c\/strong\u003e \u003ca href=\"\/products\/seachem-tidal-75-hang-on-back-filter\"\u003eSeachem Tidal 75\u003c\/a\u003e and \u003ca href=\"\/products\/seacehm-tidal-110-hang-on-back-filter\"\u003eTidal 110\u003c\/a\u003e (larger), \u003ca href=\"\/products\/fluval-c4-hang-on-back-filter\"\u003eFluval C-Series HOB\u003c\/a\u003e. \u003cstrong\u003eRecommended media:\u003c\/strong\u003e \u003ca href=\"\/products\/seachem-matrix\"\u003eSeachem Matrix\u003c\/a\u003e, \u003ca href=\"\/products\/tcws-bio-media\"\u003eTCWS Bio-Media\u003c\/a\u003e, \u003ca href=\"\/products\/seachem-purigen-100ml\"\u003ePurigen\u003c\/a\u003e. \u003cstrong\u003eCollections:\u003c\/strong\u003e \u003ca href=\"\/collections\/seachem\"\u003eSeachem\u003c\/a\u003e, \u003ca href=\"\/collections\/aquarium-filter\"\u003eAquarium Filters\u003c\/a\u003e. \u003cstrong\u003eGuides:\u003c\/strong\u003e \u003ca href=\"\/blogs\/news\/canister-vs-hob-vs-sponge\"\u003eCanister vs HOB vs Sponge\u003c\/a\u003e, \u003ca href=\"\/blogs\/news\/aquarium-filter-media-guide\"\u003eFilter Media Guide\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eConclusion\u003c\/h2\u003e\n\u003cp\u003eThe Seachem Tidal 55 hang-on-back aquarium filter is a powerful, high-capacity, easy-to-use choice for tanks up to 200 litres (3–4 ft). With 1,000 LPH adjustable flow, a large media basket and a built-in surface skimmer, it brings canister-grade filtration to a convenient HOB — one of the best hang-on-back filters in India.\u003c\/p\u003e","brand":"Seachem","offers":[{"title":"Default Title","offer_id":44378685669418,"sku":null,"price":7176.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0720\/9238\/5322\/files\/SeachemTidel55.jpg?v=1779801023"},{"product_id":"blue-pet-blh-401-aquarium-hang-on-filter-4-watts","title":"Blue Pet BLH-401 Aquarium Hang on Filter 4 watts","description":"\u003cp\u003e\u003cstrong\u003eThe Blue Pet BLH-401 is a 4W hang-on-back (HOB) aquarium filter delivering up to 250 L\/H, a compact, quiet filter that hangs on the rim to keep small tanks clean while saving space inside the tank.\u003c\/strong\u003e It removes debris, food residue and particles for clear water, creates a gentle oxygenating waterfall, and installs in seconds — a simple, efficient HOB for small community and betta setups.\u003c\/p\u003e\n\u003ch3\u003eWhy choose the Blue Pet BLH-401?\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e250 L\/H flow\u003c\/strong\u003e from an efficient 4W motor.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHangs on the rim\u003c\/strong\u003e — keeps the tank interior clear.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWaterfall return\u003c\/strong\u003e that oxygenates the surface.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMechanical + biological filtration\u003c\/strong\u003e via the cartridge.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuiet and easy to maintain.\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eBlue Pet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eBLH-401\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower\u003c\/td\u003e\n\u003ctd\u003e4 watts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax flow\u003c\/td\u003e\n\u003ctd\u003e250 L\/H\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eHang-on-back (HOB) filter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eWhich tanks is it best for?\u003c\/h3\u003e\n\u003cp\u003eWith 250 L\/H, the BLH-401 suits small tanks up to roughly 60L. For a smaller option see the \u003ca href=\"\/products\/blue-pet-blh-301-aquarium-hang-on-filter-3-watts\"\u003eBLH-301 (180 L\/H)\u003c\/a\u003e; for more flow, the \u003ca href=\"\/products\/blue-pet-blh-403-aquarium-hang-on-filter-8-watts\"\u003eBLH-403 (500 L\/H)\u003c\/a\u003e. Learn the format in \u003ca href=\"\/blogs\/news\/canister-vs-hob-vs-sponge\"\u003ecanister vs HOB vs sponge\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eHow to set it up\u003c\/h3\u003e\n\u003cp\u003eHang the filter on the back rim, prime it if needed, and plug in. Keep it \u003cstrong\u003erunning 24\/7\u003c\/strong\u003e, and rinse the cartridge in old tank water (never tap water) when flow slows. See \u003ca href=\"\/blogs\/news\/how-to-install-aquarium-filter\"\u003ehow to install an aquarium filter\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eFrequently asked questions\u003c\/h3\u003e\n\u003ch4\u003eWhat size tank is the BLH-401 for?\u003c\/h4\u003e\n\u003cp\u003eSmall tanks up to roughly 60L, based on its 250 L\/H flow.\u003c\/p\u003e\n\u003ch4\u003eDoes it oxygenate the water?\u003c\/h4\u003e\n\u003cp\u003eYes. The waterfall return improves surface oxygen exchange.\u003c\/p\u003e\n\u003ch4\u003eIs it betta-friendly?\u003c\/h4\u003e\n\u003cp\u003eIt is gentle, but if flow is too strong for a betta see \u003ca href=\"\/blogs\/news\/reduce-filter-flow\"\u003ehow to reduce filter flow\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch4\u003eHow do I maintain it?\u003c\/h4\u003e\n\u003cp\u003eRinse the cartridge in old tank water when flow drops, usually every 2–4 weeks.\u003c\/p\u003e\n\u003ch4\u003eShould it run all the time?\u003c\/h4\u003e\n\u003cp\u003eYes, keep it running 24\/7 to protect the beneficial bacteria.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eNew to filtration? Read our \u003ca href=\"\/blogs\/news\/aquarium-filter-guide\"\u003ecomplete aquarium filter guide\u003c\/a\u003e and \u003ca href=\"\/blogs\/news\/types-of-aquarium-filters\"\u003etypes of aquarium filters\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e","brand":"Onyxaqua","offers":[{"title":"Default Title","offer_id":44484109893674,"sku":null,"price":380.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0720\/9238\/5322\/files\/Blue-Pet-BLH-401-Aquarium-Hang-on-Filter-3.webp?v=1781946824"},{"product_id":"blue-pet-blh-301-aquarium-hang-on-filter-3-watts","title":"Blue Pet BLH-301 Aquarium Hang on Filter 3 watts","description":"\u003cp\u003e\u003cstrong\u003eThe Blue Pet BLH-301 is a 3W hang-on-back (HOB) aquarium filter delivering up to 180 L\/H, a compact, quiet filter that hangs on the rim to keep nano and small tanks clean while saving space inside the tank.\u003c\/strong\u003e It traps debris, food residue and particles for clear water, creates a gentle waterfall that oxygenates the surface, and is simple to install and maintain — an easy entry-level HOB for small setups.\u003c\/p\u003e\n\u003ch3\u003eWhy choose the Blue Pet BLH-301?\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact 3W HOB\u003c\/strong\u003e with 180 L\/H flow for nano and small tanks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHangs on the rim\u003c\/strong\u003e — no space used inside the tank.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWaterfall return\u003c\/strong\u003e that oxygenates the water surface.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMechanical + biological filtration\u003c\/strong\u003e via the filter cartridge.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuiet and easy to maintain.\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eBlue Pet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eBLH-301\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower\u003c\/td\u003e\n\u003ctd\u003e3 watts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax flow\u003c\/td\u003e\n\u003ctd\u003e180 L\/H\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eHang-on-back (HOB) filter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eWhich tanks is it best for?\u003c\/h3\u003e\n\u003cp\u003eWith 180 L\/H, the BLH-301 suits nano and small tanks up to roughly 40L. For slightly larger tanks see the \u003ca href=\"\/products\/blue-pet-blh-401-aquarium-hang-on-filter-4-watts\"\u003eBLH-401 (250 L\/H)\u003c\/a\u003e or \u003ca href=\"\/products\/blue-pet-blh-403-aquarium-hang-on-filter-8-watts\"\u003eBLH-403 (500 L\/H)\u003c\/a\u003e. Learn the format in \u003ca href=\"\/blogs\/news\/canister-vs-hob-vs-sponge\"\u003ecanister vs HOB vs sponge\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eHow to set it up\u003c\/h3\u003e\n\u003cp\u003eHang the filter on the back rim, prime it if needed, and plug in. Keep it \u003cstrong\u003erunning 24\/7\u003c\/strong\u003e, and rinse the cartridge in old tank water (never tap water) when flow slows. See \u003ca href=\"\/blogs\/news\/how-to-install-aquarium-filter\"\u003ehow to install an aquarium filter\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eFrequently asked questions\u003c\/h3\u003e\n\u003ch4\u003eWhat size tank is the BLH-301 for?\u003c\/h4\u003e\n\u003cp\u003eNano and small tanks up to roughly 40L, based on its 180 L\/H flow.\u003c\/p\u003e\n\u003ch4\u003eDoes it oxygenate the water?\u003c\/h4\u003e\n\u003cp\u003eYes. The waterfall return agitates the surface and improves oxygen exchange.\u003c\/p\u003e\n\u003ch4\u003eIs it quiet?\u003c\/h4\u003e\n\u003cp\u003eYes. It is designed for quiet operation.\u003c\/p\u003e\n\u003ch4\u003eHow do I maintain it?\u003c\/h4\u003e\n\u003cp\u003eRinse the cartridge in old tank water when flow drops, usually every 2–4 weeks.\u003c\/p\u003e\n\u003ch4\u003eShould it run all the time?\u003c\/h4\u003e\n\u003cp\u003eYes. Keep it running 24\/7 so the beneficial bacteria survive.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eNew to filtration? Read our \u003ca href=\"\/blogs\/news\/aquarium-filter-guide\"\u003ecomplete aquarium filter guide\u003c\/a\u003e and \u003ca href=\"\/blogs\/news\/types-of-aquarium-filters\"\u003etypes of aquarium filters\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e","brand":"Onyxaqua","offers":[{"title":"Default Title","offer_id":44484110647338,"sku":null,"price":300.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0720\/9238\/5322\/files\/Blue-Pet-BLH-301-Aquarium-Hang-on-Filter-3-watts-2.webp?v=1781946910"},{"product_id":"bluepet-blh-302-aquarium-hang-on-filter-5w-300l-h-with-surface-skimmer","title":"Bluepet BLH-302 Aquarium Hang On Filter (5W) – 300L\/H with Surface Skimmer","description":"\u003cp\u003e\u003cstrong\u003eThe Bluepet BLH-302 is a 5W hang-on-back (HOB) aquarium filter delivering up to 300 L\/H, with a built-in surface skimmer that clears the oily film off the water while filtering debris — keeping small tanks clean, clear and well-oxygenated without taking up space inside the tank.\u003c\/strong\u003e Slim and quiet, it creates an oxygenating waterfall return and is easy to install and maintain — a great everyday HOB for nano and small community setups.\u003c\/p\u003e\n\u003ch3\u003eWhy choose the Bluepet BLH-302?\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e300 L\/H flow\u003c\/strong\u003e from an efficient 5W motor.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt-in surface skimmer\u003c\/strong\u003e removes the oily surface film.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWaterfall return\u003c\/strong\u003e for surface oxygenation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSlim, space-saving HOB\u003c\/strong\u003e design.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuiet and easy to maintain.\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eBluepet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eBLH-302\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower\u003c\/td\u003e\n\u003ctd\u003e5 watts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax flow\u003c\/td\u003e\n\u003ctd\u003e300 L\/H\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExtra\u003c\/td\u003e\n\u003ctd\u003eBuilt-in surface skimmer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eHang-on-back (HOB) filter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eWhich tanks is it best for?\u003c\/h3\u003e\n\u003cp\u003eWith 300 L\/H, the BLH-302 suits nano and small tanks up to roughly 70L, and the skimmer makes it ideal where an oily film forms on the surface. For more flow with a skimmer see the \u003ca href=\"\/products\/blue-pet-blh-403-aquarium-hang-on-filter-8-watts\"\u003eBLH-403 (500 L\/H)\u003c\/a\u003e; for a basic smaller HOB, the \u003ca href=\"\/products\/blue-pet-blh-301-aquarium-hang-on-filter-3-watts\"\u003eBLH-301 (180 L\/H)\u003c\/a\u003e. See \u003ca href=\"\/blogs\/news\/canister-vs-hob-vs-sponge\"\u003ecanister vs HOB vs sponge\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eHow to set it up\u003c\/h3\u003e\n\u003cp\u003eHang the filter on the back rim, prime it if needed, and plug in. Keep it \u003cstrong\u003erunning 24\/7\u003c\/strong\u003e, and rinse the cartridge in old tank water (never tap water) when flow slows. See \u003ca href=\"\/blogs\/news\/how-to-install-aquarium-filter\"\u003ehow to install an aquarium filter\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eFrequently asked questions\u003c\/h3\u003e\n\u003ch4\u003eWhat size tank is the BLH-302 for?\u003c\/h4\u003e\n\u003cp\u003eNano and small tanks up to roughly 70L, based on its 300 L\/H flow.\u003c\/p\u003e\n\u003ch4\u003eWhat does the surface skimmer do?\u003c\/h4\u003e\n\u003cp\u003eIt removes the oily film from the water surface, improving oxygen exchange and clarity.\u003c\/p\u003e\n\u003ch4\u003eIs it quiet?\u003c\/h4\u003e\n\u003cp\u003eYes. The slim design runs quietly.\u003c\/p\u003e\n\u003ch4\u003eHow do I maintain it?\u003c\/h4\u003e\n\u003cp\u003eRinse the cartridge in old tank water when flow drops, usually every 2–4 weeks.\u003c\/p\u003e\n\u003ch4\u003eShould it run all the time?\u003c\/h4\u003e\n\u003cp\u003eYes, keep it running 24\/7 to protect the beneficial bacteria.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eNew to filtration? Read our \u003ca href=\"\/blogs\/news\/aquarium-filter-guide\"\u003ecomplete aquarium filter guide\u003c\/a\u003e and \u003ca href=\"\/blogs\/news\/types-of-aquarium-filters\"\u003etypes of aquarium filters\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e","brand":"Onyxaqua","offers":[{"title":"Default Title","offer_id":44484125818922,"sku":null,"price":400.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0720\/9238\/5322\/files\/Bluepet-BLH-302-Aquarium-Hang-on-Filter-5W-6.webp?v=1781947621"},{"product_id":"sunsun-ybf-600-hang-on-canister-filter-8-watts-600-l-h","title":"Sunsun YBF-600 Hang-On Canister Filter 8 Watts 600 L\/H","description":"\u003cp\u003e\u003cstrong\u003eThe Sunsun YBF-600 is an 8W hang-on canister filter delivering up to 600 L\/H, with a patented fish-waste separator that traps manure before it reaches the biological media — keeping water cleaner for longer and reducing maintenance.\u003c\/strong\u003e It combines the space-saving convenience of a hang-on filter with multi-stage canister-style media and a unique transparent side chamber (a “septic tank” with a stainless-steel mesh) that actively separates solid waste. A smart, efficient HOB-canister hybrid for small-to-medium tanks.\u003c\/p\u003e\n\u003ch3\u003eWhy choose the Sunsun YBF-600?\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePatented fish-waste separator\u003c\/strong\u003e traps manure before it breaks down in the media.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e600 L\/H flow\u003c\/strong\u003e from an efficient 8W motor.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-stage canister-style media\u003c\/strong\u003e for mechanical and biological filtration.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHang-on design\u003c\/strong\u003e — no under-cabinet space or plumbing needed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCleaner water for longer\u003c\/strong\u003e, with less frequent maintenance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eSunsun\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eYBF-600\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower\u003c\/td\u003e\n\u003ctd\u003e8 watts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax flow\u003c\/td\u003e\n\u003ctd\u003e600 L\/H\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFeature\u003c\/td\u003e\n\u003ctd\u003ePatented fish-waste separator (septic chamber)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eHang-on canister filter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eWhich tanks is it best for?\u003c\/h3\u003e\n\u003cp\u003eWith 600 L\/H, the YBF-600 suits small-to-medium tanks up to roughly 150L, and its waste separator makes it especially good for tanks with messier fish. For a standard hang-on at similar flow see the \u003ca href=\"\/products\/sobo-wp-607h-aquarium-hang-on-filter-12-watts-600-l-h\"\u003eSobo WP-607H\u003c\/a\u003e; for full canister options see \u003ca href=\"\/blogs\/news\/best-canister-filters-india\"\u003ebest canister filters in India\u003c\/a\u003e. Compare formats in \u003ca href=\"\/blogs\/news\/canister-vs-hob-vs-sponge\"\u003ecanister vs HOB vs sponge\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eHow to set it up\u003c\/h3\u003e\n\u003cp\u003eHang the unit on the back rim, load the media, prime it and plug in. Keep it \u003cstrong\u003erunning 24\/7\u003c\/strong\u003e. Empty the waste-separator chamber regularly (its whole purpose is to collect solids), and rinse the biological media in old tank water (never tap water) only when needed. See \u003ca href=\"\/blogs\/news\/how-to-clean-aquarium-filter\"\u003ehow to clean an aquarium filter\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eFrequently asked questions\u003c\/h3\u003e\n\u003ch4\u003eWhat is the fish-waste separator?\u003c\/h4\u003e\n\u003cp\u003eA transparent side chamber with a stainless-steel mesh that traps fish manure before it reaches the biological media, so waste does not break down inside the filter.\u003c\/p\u003e\n\u003ch4\u003eWhat size tank is the YBF-600 for?\u003c\/h4\u003e\n\u003cp\u003eSmall-to-medium tanks up to roughly 150L, based on its 600 L\/H flow.\u003c\/p\u003e\n\u003ch4\u003eIs it a canister or a hang-on?\u003c\/h4\u003e\n\u003cp\u003eA hybrid — it hangs on the tank like an HOB but uses canister-style multi-stage media, with no plumbing or cabinet space needed.\u003c\/p\u003e\n\u003ch4\u003eDoes it reduce maintenance?\u003c\/h4\u003e\n\u003cp\u003eYes. Separating solid waste keeps the biological media cleaner for longer; you mainly empty the waste chamber.\u003c\/p\u003e\n\u003ch4\u003eHow often should I clean it?\u003c\/h4\u003e\n\u003cp\u003eEmpty the waste chamber regularly; rinse biological media in old tank water only when flow drops.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eNew to filtration? Read our \u003ca href=\"\/blogs\/news\/aquarium-filter-guide\"\u003ecomplete aquarium filter guide\u003c\/a\u003e and \u003ca href=\"\/blogs\/news\/best-canister-filters-india\"\u003ebest canister filters in India\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e","brand":"Onyxaqua","offers":[{"title":"Default Title","offer_id":44484126146602,"sku":null,"price":3600.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0720\/9238\/5322\/files\/YBF-600Aquariumhangonfilter-5.webp?v=1781947859"},{"product_id":"sobo-wp-618h-slim-aquarium-hang-on-filter-5w-280-l-h","title":"Sobo WP-618H Slim Aquarium Hang-On-Filter (5W) – 280 L\/H","description":"\u003cp\u003e\u003cstrong\u003eThe Sobo WP-618H is an ultra-slim 5W hang-on-back filter delivering up to 280 L\/H, designed to keep nano tanks and small aquariums crystal-clear without sacrificing valuable swimming space.\u003c\/strong\u003e Its thin profile hangs neatly on the rim, drawing water through the media and returning it as a gentle oxygenating waterfall. Quiet, efficient and easy to maintain, it is an ideal slim HOB for modern nano and desktop setups.\u003c\/p\u003e\n\u003ch3\u003eWhy choose the Sobo WP-618H?\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eUltra-thin profile\u003c\/strong\u003e that saves space on small and nano tanks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e280 L\/H flow\u003c\/strong\u003e from an efficient 5W motor.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMechanical + biological filtration\u003c\/strong\u003e via the media.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGentle waterfall return\u003c\/strong\u003e for surface oxygenation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuiet and easy to maintain.\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eSobo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eWP-618H\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower\u003c\/td\u003e\n\u003ctd\u003e5 watts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax flow\u003c\/td\u003e\n\u003ctd\u003e280 L\/H\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eSlim hang-on-back (HOB) filter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eWhich tanks is it best for?\u003c\/h3\u003e\n\u003cp\u003eWith 280 L\/H, the WP-618H suits nano and small tanks up to roughly 65L. For more flow see the \u003ca href=\"\/products\/sobo-wp-607h-aquarium-hang-on-filter-12-watts-600-l-h\"\u003eSobo WP-607H (600 L\/H)\u003c\/a\u003e. Its gentle flow suits betta and shrimp; if it is still too strong, see \u003ca href=\"\/blogs\/news\/reduce-filter-flow\"\u003ehow to reduce filter flow\u003c\/a\u003e. Learn the format in \u003ca href=\"\/blogs\/news\/canister-vs-hob-vs-sponge\"\u003ecanister vs HOB vs sponge\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eHow to set it up\u003c\/h3\u003e\n\u003cp\u003eHang the filter on the back rim, prime it if needed, and plug in. Keep it \u003cstrong\u003erunning 24\/7\u003c\/strong\u003e, and rinse the media in old tank water (never tap water) when flow slows. See \u003ca href=\"\/blogs\/news\/how-to-install-aquarium-filter\"\u003ehow to install an aquarium filter\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eFrequently asked questions\u003c\/h3\u003e\n\u003ch4\u003eWhat size tank is the WP-618H for?\u003c\/h4\u003e\n\u003cp\u003eNano and small tanks up to roughly 65L, based on its 280 L\/H flow.\u003c\/p\u003e\n\u003ch4\u003eWhy choose a slim HOB?\u003c\/h4\u003e\n\u003cp\u003eThe ultra-thin profile takes up little room and suits modern rimless and nano tanks.\u003c\/p\u003e\n\u003ch4\u003eIs it betta-safe?\u003c\/h4\u003e\n\u003cp\u003eIts flow is gentle; for very sensitive betta see how to reduce filter flow.\u003c\/p\u003e\n\u003ch4\u003eHow do I maintain it?\u003c\/h4\u003e\n\u003cp\u003eRinse the media in old tank water when flow drops, usually every 2–4 weeks.\u003c\/p\u003e\n\u003ch4\u003eShould it run all the time?\u003c\/h4\u003e\n\u003cp\u003eYes, keep it running 24\/7 to protect the beneficial bacteria.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eNew to filtration? Read our \u003ca href=\"\/blogs\/news\/aquarium-filter-guide\"\u003ecomplete aquarium filter guide\u003c\/a\u003e and \u003ca href=\"\/blogs\/news\/types-of-aquarium-filters\"\u003etypes of aquarium filters\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e","brand":"Onyxaqua","offers":[{"title":"Default Title","offer_id":44484130045994,"sku":null,"price":500.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0720\/9238\/5322\/files\/SoboWP-618HAquariumhangonfilter-6.webp?v=1781949371"},{"product_id":"sobo-wp-607h-aquarium-hang-on-filter-12-watts-600-l-h","title":"Sobo WP-607H Aquarium Hang On Filter 12 Watts | 600 L\/h","description":"\u003cp\u003e\u003cstrong\u003eThe Sobo WP-607H is a 12W hang-on aquarium filter delivering up to 600 L\/H, combining mechanical, chemical and biological filtration in one rim-mounted unit with the water pump and media built in.\u003c\/strong\u003e It hangs on the back of the tank to save internal space, draws water up through the media, and returns it as an oxygenating waterfall — a complete, easy three-stage HOB for small-to-medium community tanks.\u003c\/p\u003e\n\u003ch3\u003eWhy choose the Sobo WP-607H?\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e600 L\/H flow\u003c\/strong\u003e from a 12W motor with pump and media built in.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3-stage filtration\u003c\/strong\u003e — mechanical, chemical and biological.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHangs on the rim\u003c\/strong\u003e — frees up space inside the tank.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWaterfall return\u003c\/strong\u003e for surface oxygenation.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSimple all-in-one setup and maintenance.\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eSobo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eWP-607H\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower\u003c\/td\u003e\n\u003ctd\u003e12 watts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage\u003c\/td\u003e\n\u003ctd\u003eAC 220-240V \/ 50 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax flow\u003c\/td\u003e\n\u003ctd\u003e600 L\/H\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eHang-on (HOB) filter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eWhich tanks is it best for?\u003c\/h3\u003e\n\u003cp\u003eWith 600 L\/H, the WP-607H suits small-to-medium tanks up to roughly 150L. For a slim, low-flow option see the \u003ca href=\"\/products\/sobo-wp-618h-slim-aquarium-hang-on-filter-5w-280-l-h\"\u003eSobo WP-618H (280 L\/H)\u003c\/a\u003e; for a waste-separating hang-on canister, the \u003ca href=\"\/products\/sunsun-ybf-600-hang-on-canister-filter-8-watts-600-l-h\"\u003eSunsun YBF-600\u003c\/a\u003e. See \u003ca href=\"\/blogs\/news\/canister-vs-hob-vs-sponge\"\u003ecanister vs HOB vs sponge\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eHow to set it up\u003c\/h3\u003e\n\u003cp\u003eHang the filter on the back rim, add your media, prime it and plug in. Keep it \u003cstrong\u003erunning 24\/7\u003c\/strong\u003e, and rinse the mechanical media in old tank water (never tap water) when flow slows. See \u003ca href=\"\/blogs\/news\/how-to-install-aquarium-filter\"\u003ehow to install an aquarium filter\u003c\/a\u003e and \u003ca href=\"\/blogs\/news\/aquarium-filter-media-guide\"\u003efilter media guide\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eFrequently asked questions\u003c\/h3\u003e\n\u003ch4\u003eWhat size tank is the WP-607H for?\u003c\/h4\u003e\n\u003cp\u003eSmall-to-medium tanks up to roughly 150L, based on its 600 L\/H flow.\u003c\/p\u003e\n\u003ch4\u003eDoes it do all three filtration types?\u003c\/h4\u003e\n\u003cp\u003eYes — mechanical, chemical and biological in one hang-on unit.\u003c\/p\u003e\n\u003ch4\u003eDoes it oxygenate the water?\u003c\/h4\u003e\n\u003cp\u003eYes. The waterfall return improves surface oxygen exchange.\u003c\/p\u003e\n\u003ch4\u003eCan I customise the media?\u003c\/h4\u003e\n\u003cp\u003eYes. You can adjust the media stack to suit your livestock; see the filter media guide.\u003c\/p\u003e\n\u003ch4\u003eHow often should I clean it?\u003c\/h4\u003e\n\u003cp\u003eRinse the mechanical media in old tank water when flow drops, usually every 2–4 weeks.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eNew to filtration? Read our \u003ca href=\"\/blogs\/news\/aquarium-filter-guide\"\u003ecomplete aquarium filter guide\u003c\/a\u003e and \u003ca href=\"\/blogs\/news\/how-aquarium-filters-work\"\u003ehow aquarium filters work\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e","brand":"Onyxaqua","offers":[{"title":"Default Title","offer_id":44484160782378,"sku":null,"price":1050.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0720\/9238\/5322\/files\/Sobo-WP-607H-Hanging-Aquarium-Filter-Pump-12W-600LH-10.webp?v=1781952323"},{"product_id":"blue-pet-blh-403-aquarium-hang-on-filter-8-watts","title":"Blue Pet BLH-403 Aquarium Hang on Filter 8 watts","description":"\u003cp\u003e\u003cstrong\u003eThe Blue Pet BLH-403 is an 8W hang-on-back (HOB) aquarium filter delivering up to 500 L\/H, with a built-in surface skimmer that clears the oily film off the water as well as filtering debris — keeping small-to-medium tanks clean, clear and well-oxygenated.\u003c\/strong\u003e It hangs on the rim to save space, creates an oxygenating waterfall return, and uses a 2-layer filter system for fast, effective filtration. A strong, feature-rich HOB for everyday tanks.\u003c\/p\u003e\n\u003ch3\u003eWhy choose the Blue Pet BLH-403?\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e500 L\/H flow\u003c\/strong\u003e from an 8W motor for small-to-medium tanks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt-in surface skimmer\u003c\/strong\u003e removes the oily film from the water surface.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWaterfall return\u003c\/strong\u003e for strong surface oxygenation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2-layer filtration\u003c\/strong\u003e — mechanical and biological.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHangs on the rim\u003c\/strong\u003e — no space used inside the tank.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eBlue Pet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eBLH-403\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower\u003c\/td\u003e\n\u003ctd\u003e8 watts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax flow\u003c\/td\u003e\n\u003ctd\u003e500 L\/H\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExtra\u003c\/td\u003e\n\u003ctd\u003eBuilt-in surface skimmer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eHang-on-back (HOB) filter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eWhich tanks is it best for?\u003c\/h3\u003e\n\u003cp\u003eWith 500 L\/H, the BLH-403 suits small-to-medium tanks up to roughly 120L, and the surface skimmer makes it especially good for tanks with an oily surface film. For smaller tanks see the \u003ca href=\"\/products\/blue-pet-blh-401-aquarium-hang-on-filter-4-watts\"\u003eBLH-401 (250 L\/H)\u003c\/a\u003e; for a skimmer model with lower flow, the \u003ca href=\"\/products\/bluepet-blh-302-aquarium-hang-on-filter-5w-300l-h-with-surface-skimmer\"\u003eBLH-302 (300 L\/H)\u003c\/a\u003e. See \u003ca href=\"\/blogs\/news\/canister-vs-hob-vs-sponge\"\u003ecanister vs HOB vs sponge\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eHow to set it up\u003c\/h3\u003e\n\u003cp\u003eHang the filter on the back rim, prime it if needed, and plug in. Keep it \u003cstrong\u003erunning 24\/7\u003c\/strong\u003e, and rinse the filter layers in old tank water (never tap water) when flow slows. See \u003ca href=\"\/blogs\/news\/how-to-install-aquarium-filter\"\u003ehow to install an aquarium filter\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eFrequently asked questions\u003c\/h3\u003e\n\u003ch4\u003eWhat size tank is the BLH-403 for?\u003c\/h4\u003e\n\u003cp\u003eSmall-to-medium tanks up to roughly 120L, based on its 500 L\/H flow.\u003c\/p\u003e\n\u003ch4\u003eWhat does the surface skimmer do?\u003c\/h4\u003e\n\u003cp\u003eIt draws in the oily film that collects on the water surface, improving gas exchange and clarity.\u003c\/p\u003e\n\u003ch4\u003eDoes it oxygenate the water?\u003c\/h4\u003e\n\u003cp\u003eYes. The waterfall return plus skimmer give strong surface oxygenation.\u003c\/p\u003e\n\u003ch4\u003eHow do I maintain it?\u003c\/h4\u003e\n\u003cp\u003eRinse the filter layers in old tank water when flow drops, usually every 2–4 weeks.\u003c\/p\u003e\n\u003ch4\u003eShould it run all the time?\u003c\/h4\u003e\n\u003cp\u003eYes, keep it running 24\/7 to protect the beneficial bacteria.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eNew to filtration? Read our \u003ca href=\"\/blogs\/news\/aquarium-filter-guide\"\u003ecomplete aquarium filter guide\u003c\/a\u003e and \u003ca href=\"\/blogs\/news\/how-aquarium-filters-work\"\u003ehow aquarium filters work\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e","brand":"Onyxaqua","offers":[{"title":"Default Title","offer_id":44484169498666,"sku":null,"price":870.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0720\/9238\/5322\/files\/Blue-Pet-BLH-403-Aquarium-Hang-on-Filter-1.webp?v=1781953359"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0720\/9238\/5322\/collections\/44.webp?v=1785269362","url":"https:\/\/fishbazaarr.in\/collections\/hang-on-back-filters.oembed","provider":"Fish Bazaar","version":"1.0","type":"link"}