Seachem Tidal 75 Hang-On-Back Filter | up to 300L (4–5 ft) | Fish Bazaar
The Seachem Tidal 75 hang-on-back aquarium filter is a powerful, premium HOB filter for fish tanks up to 300 litres (roughly 4 to 5 feet), delivering 1,500 litres per hour 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.
What is the Seachem Tidal 75 Filter?
Short answer: 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.
In detail: 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. For example, 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.
Key Features
- 1,500 LPH adjustable flow - strong, controllable circulation for tanks up to 300 L.
- Large media basket - exceptional capacity for a HOB, fill it with the media you prefer.
- Built-in surface skimmer - removes surface film and improves gas exchange.
- Self-priming pump - starts easily with no manual siphoning.
- Easy maintenance - maintenance alert and tool-free media access.
- Seachem-engineered - from the brand behind Matrix and Purigen media.
Benefits
Immediate: Clear water, a clean surface and strong adjustable flow from day one.
Short-term: The large media capacity matures into a powerful biological filter, keeping ammonia and nitrite at zero on bigger tanks.
Long-term: Canister-grade results with HOB convenience, for years, using only inexpensive media top-ups.
How It Works
The Tidal 75 draws water up through its large media basket, mechanical foam traps debris, biological media such as Seachem Matrix grows the bacteria that convert toxic ammonia to nitrite and nitrate, and chemical media such as Purigen polishes the water, then returns it over the surface skimmer. See how aquarium filters work.
Which Tank Size Is the Tidal 75 For?
Short answer: Tanks up to 300 litres, roughly 4 to 5 foot aquariums.
| Tank length | Approx. volume | Tidal 75 suitability |
|---|---|---|
| 3 ft | 100–120 L | Good (consider the Tidal 55) |
| 4 ft | 200–250 L | Ideal |
| 5 ft | 300 L | Excellent |
| 5 ft+ | 300 L+ | Step up to the Tidal 110 |
Suitable For
- Larger community tanks of tetras, guppies, mollies, gouramis and barbs
- Planted tanks (the surface skimmer keeps the surface clean)
- Lightly-stocked cichlid and goldfish tanks within its size range
- Keepers who want big media capacity without a canister or cabinet
Not Suitable For
- Tanks over 300 L, choose the Tidal 110
- Nano and betta tanks, the flow is strong; a small internal or sponge filter is gentler
- Rimless tanks where a HOB cannot hang securely
Setup & Usage
Hang 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 installation guide.
Technical Specifications
| Specification | Detail |
|---|---|
| Model | Seachem Tidal 75 |
| Filter type | Hang-on-back (HOB) |
| Suitable tank size | up to 300 L |
| Flow rate | 1,500 LPH (adjustable) |
| Surface skimmer | Yes |
| Priming | Self-priming |
| Best for | Larger community & planted tanks 4–5 ft |
Common Problems It Solves
Low media capacity of cheap HOBs: the large basket holds far more media. Oily surface film: the built-in skimmer clears it and improves oxygenation. Canister hassle: gives big-filter results without hoses or a cabinet. Cloudy water on bigger tanks: strong 3-stage filtration keeps the tank clear.
Seachem Tidal 75 vs Other Filters
| Feature | Tidal 75 | Tidal 55 | Canister |
|---|---|---|---|
| Flow rate | 1,500 LPH | 1,000 LPH | 550–3,500 LPH |
| Max tank size | 300 L | 200 L | 100 L+ |
| Surface skimmer | Yes | Yes | Optional |
| Setup | Hang-on, easy | Hang-on, easy | More involved |
Expert Recommendation
For 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 Seachem Matrix or TCWS Bio-Media and add Purigen for show-quality clarity.
Frequently Asked Questions
What tank size is the Seachem Tidal 75 suitable for?
Tanks up to 300 litres, roughly a 4 to 5 foot aquarium. It is ideal for larger community and planted tanks.
What is the flow rate of the Tidal 75?
1,500 litres per hour, fully adjustable so you can soften it for delicate fish.
Does the Tidal 75 have a surface skimmer?
Yes, a built-in surface skimmer removes the oily film and improves gas exchange.
Tidal 55 vs 75 vs 110, which should I choose?
The 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.
Does the Tidal 75 come with media?
Yes, it ships with Seachem media; add extra Matrix or TCWS Bio-Media to fill the large basket.
Is the Tidal 75 good for planted tanks?
Yes, the surface skimmer keeps the surface clean and the adjustable flow suits planted layouts.
How often do I clean the Tidal 75?
Rinse the mechanical media in old tank water every 2–4 weeks; the maintenance alert helps you time it.
Can I use the Tidal 75 on a goldfish tank?
Yes, for lightly-stocked goldfish within its size range; the strong flow and capacity handle the waste well.
Does the Tidal 75 self-prime?
Yes, it self-primes, so there is no manual siphoning to start it.
Is the Tidal 75 quiet?
Yes, it runs quietly when primed and the water level is correct.
Is the Tidal 75 better than a canister?
It offers much of a canister's capacity with easier setup; for tanks over 300 L or inline CO2, a canister is still better.
Is the Seachem Tidal 75 worth it in India?
Yes, its capacity, skimmer and build quality make it excellent value among hang-on-back filters.
Does the Tidal 75 work on marine tanks?
Yes, it suits freshwater and marine setups within its size range.
Related Products & Guides
Related filters: Seachem Tidal 55 (smaller) and Tidal 110 (larger), Fluval C-Series HOB. Recommended media: Seachem Matrix, TCWS Bio-Media, Purigen. Collections: Seachem, Aquarium Filters. Guides: Canister vs HOB vs Sponge, Filter Media Guide.
Conclusion
The 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.
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