{"product_id":"hygger-hg083-25w-aquarium-heater","title":"Hygger HG083 25W Mini Aquarium Heater with External Controller | Betta \u0026 Small Tank Heater (up to ~25 L)","description":"\u003cp\u003e\u003cstrong\u003eThe Hygger HG083 25W is a compact submersible aquarium heater with a five-key external controller\u003c\/strong\u003e - a reliable, easy-to-use heater that holds a stable, healthy temperature in betta and small tanks. Set the temperature from outside the tank and let the smart safety system do the rest.\u003c\/p\u003e\n\n\u003ch2\u003eWhat size tank is the 25W heater for?\u003c\/h2\u003e\n\u003cp\u003eThe HG083 25W suits \u003cstrong\u003ebetta and small tanks up to about 25 litres\u003c\/strong\u003e - roughly a \u003cstrong\u003e6-7 gallon tank\u003c\/strong\u003e or a small \u003cstrong\u003e1 ft aquarium\u003c\/strong\u003e. It's a great \u003cstrong\u003ebetta fish heater\u003c\/strong\u003e, shrimp-tank heater or small community-tank heater. Aquarium heaters need roughly 1 watt per litre, so match wattage to your tank (see our \u003ca href=\"\/blogs\/news\/aquarium-heater-wattage-size-guide-india\"\u003ewattage \u0026amp; size guide\u003c\/a\u003e).\u003c\/p\u003e\n\n\u003ch2\u003eKey features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFive-key external controller\u003c\/strong\u003e - set and read the temperature outside the tank\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e5 preset temperatures\u003c\/strong\u003e for quick, accurate setting\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFast, even heating\u003c\/strong\u003e with a built-in thermometer\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIPX8 fully waterproof\u003c\/strong\u003e submersible design\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExplosion \u0026amp; overheat protection\u003c\/strong\u003e for worry-free operation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhat temperature should you set?\u003c\/h2\u003e\n\u003cp\u003eMost tropical fish, bettas included, thrive at a steady \u003cstrong\u003e24-28°C\u003c\/strong\u003e. In India night-time and winter swings - not daytime heat - are what stress fish, and a thermostatic heater like the HG083 holds a steady temperature through them. See our \u003ca href=\"\/blogs\/news\/aquarium-temperature-and-heater-guide-india\"\u003eaquarium temperature guide\u003c\/a\u003e for the ideal setting.\u003c\/p\u003e\n\n\u003ch2\u003eHow to set up and use it\u003c\/h2\u003e\n\u003cp\u003eSubmerge the heater near your filter flow for even heat, mount the controller outside the tank, and set your temperature on the five-key pad. Keep a separate thermometer as a cross-check and follow our \u003ca href=\"\/blogs\/news\/aquarium-heater-safety-overheating-guide-india\"\u003eheater safety guide\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eWhy choose Hygger?\u003c\/h2\u003e\n\u003cp\u003eHygger is one of the most trusted names in aquarium equipment, known for precise, well-built heaters with real safety features. Authentic Hygger stock, delivered across India by Fish Bazaar.\u003c\/p\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHygger HG083 (25W)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWattage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e25 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSuitable tank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUp to ~25 L (~6-7 gallons, 1 ft)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eControl\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFive-key external controller, 5 presets\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSafety\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIPX8 waterproof, explosion \u0026amp; overheat protection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\n\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\n\u003ch3\u003eAre Hygger heaters any good? Is Hygger a reliable brand?\u003c\/h3\u003e\u003cp\u003eYes - Hygger is a well-regarded, widely used aquarium brand, and the HG083 combines precise external control with explosion and overheat protection.\u003c\/p\u003e\n\u003ch3\u003eIs the 25W heater good for a betta tank?\u003c\/h3\u003e\u003cp\u003eYes - it's ideal for bettas and small tropical setups in tanks up to ~25 litres.\u003c\/p\u003e\n\u003ch3\u003eHow do I set the temperature on this Hygger heater?\u003c\/h3\u003e\u003cp\u003eUse the five-key external controller to select a preset temperature; the display shows the live water temperature.\u003c\/p\u003e\n\u003ch3\u003eHow do I know the heater is working?\u003c\/h3\u003e\u003cp\u003eThe display shows the current temperature and the heater cycles on and off to hold it - confirm with a separate thermometer.\u003c\/p\u003e\n\u003ch3\u003eHow many watts does my fish tank need?\u003c\/h3\u003e\u003cp\u003eAbout 1 watt per litre - so 25W suits roughly a 25 litre tank; size up in cold or air-conditioned rooms.\u003c\/p\u003e\n\u003ch3\u003eDo aquarium heaters use a lot of electricity?\u003c\/h3\u003e\u003cp\u003eNo - at 25W and only heating when needed, running cost is minimal.\u003c\/p\u003e\n\u003ch3\u003eIs a heater necessary for a fish tank?\u003c\/h3\u003e\u003cp\u003eFor tropical fish, yes - a stable temperature keeps them healthy and disease-free.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003eNew to heaters? Read our \u003ca href=\"\/blogs\/news\/best-aquarium-heater-india\"\u003ecomplete guide to the best aquarium heaters in India\u003c\/a\u003e. Genuine Hygger, delivered across India by Fish Bazaar.\u003c\/em\u003e\u003c\/p\u003e","brand":"Hygger","offers":[{"title":"Default Title","offer_id":44693567012906,"sku":null,"price":2399.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0720\/9238\/5322\/files\/Hygger_HG083_75W_Mini_Aquarium_Heater_with_External_Controller_For_75_L_2_ft_Tanks.webp?v=1786876661","url":"https:\/\/fishbazaarr.in\/products\/hygger-hg083-25w-aquarium-heater","provider":"Fish Bazaar","version":"1.0","type":"link"}