Boyu · Hang-on-back
WF Waterfall Hang-on Filter
- Flow
- 150–720 L/h
Small to medium low-tech tanks and shrimp or betta setups on a budget.
5 models
Dophin · Hang-on-back
Dophin H Series Hanging Filter
A classic smoked-grey hang-on-back range from the tiny H-80 to the 1000 L/h H-800. Each uses a bio cartridge plus a carbon cartridge that needs changing periodically.
Updated
190–1,000 L/h6 models
Will it suit my tank?
litres
Best for
A beginner tank from 25 to 200 litres where a familiar, easy hang-on filter is enough.
Worth knowing
The carbon cartridge is a running cost and strips some liquid fertiliser, so planted-tank keepers often swap it for sponge.
What stands out
- Six sizes, 190 to 1000 L/h
- Bio cartridge and carbon cartridge
- Extendable intake with strainer
- Dust cover on top
Models and specs
| Model | Flow | Tank size | Power | Dimensions (L × W × H) |
|---|---|---|---|---|
| H-8051 0001 | 190 L/h | up to 25 L | 2.7 W | 9.5 × 8 × 18 cm |
| H-10051 0002 | 350 L/h | up to 50 L | 3.4 W | 11.5 × 9 × 16 cm |
| H-20051 0003 | 370 L/h | up to 75 L | 3.4 W | 13 × 10 × 18 cm |
| H-30051 0004 | 440 L/h | up to 100 L | 5.2 W | 15 × 12 × 19.5 cm |
| H-50051 0005 | 580 L/h | up to 150 L | 6.2 W | 18.5 × 12.5 × 21 cm |
| H-80051 0006 | 1,000 L/h | up to 200 L | 8.1 W | 18.5 × 12.5 × 24 cm |
- Brand
- Dophin
- Figures quoted
- 230 V / 50 Hz version
- Media
- Bio cartridge and carbon cartridge
Figures from the maker's published specifications. Makers revise products, so check the current figures before buying. Photos supplied by the brand or its distributor.
Compare with
Browse all filters
Oase · Hang-on-back
BioStyle
- Flow
- 350–900 L/h
- Tank size
- up to 180 L
Small planted tanks or shrimp tanks where you want easy filtration without a canister or an internal box.
3 models
SunSun · Hang-on-back
CBG Hang-On Filter with UV
- Flow
- 500–800 L/h
- Tank size
- 38–190 L
Small to mid planted tanks that suffer from surface film or green water.
4 models
SunSun · Hang-on-back
HBL Series Hang-On Filter
- Flow
- 300–800 L/h
Nano and small planted tanks, shrimp tanks and quarantine setups.
12 models
Frequently asked questions
Quick answers about the Dophin H Series Hanging Filter, drawn from its specs.
What size tank is the Dophin H Series Hanging Filter good for?
Using the 5 to 12 times turnover rule for planted tanks: H-80 (190 L/h, suits roughly 16–38 L); H-100 (350 L/h, suits roughly 29–70 L); H-200 (370 L/h, suits roughly 31–74 L); H-300 (440 L/h, suits roughly 37–88 L); H-500 (580 L/h, suits roughly 48–116 L); H-800 (1,000 L/h, suits roughly 83–200 L). The maker rates the range for tanks up to 200 L. Real flow with media and hoses is lower than the rated figure, so pick the bigger model if you are between sizes.
Who is the Dophin H Series Hanging Filter best for?
A beginner tank from 25 to 200 litres where a familiar, easy hang-on filter is enough.
Is there anything to watch out for with the Dophin H Series Hanging Filter?
The carbon cartridge is a running cost and strips some liquid fertiliser, so planted-tank keepers often swap it for sponge.
What are the alternatives to the Dophin H Series Hanging Filter?
Other filters worth comparing: Boyu WF Waterfall Hang-on Filter, Oase BioStyle, SunSun CBG Hang-On Filter with UV. Add any of them to the compare table to see the specs side by side.