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.

SunSun · Hang-on-back
A very small 2.5 W clip-on filter with an activated carbon plate, for tanks under 40 cm. Flow is up to 300 L/h.
Updated
Pico and nano tanks, betta setups.
Carbon removes liquid fertiliser too, so swap it for sponge in a planted tank.
| Model | Flow | Power | Dimensions (L × W × H) | Suits tank length |
|---|---|---|---|---|
| XBA-300 | 300 L/h | 2.5 W | 14.5 × 12 × 33.5 cm | under 40 cm |
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.
Boyu · Hang-on-back
Small to medium low-tech tanks and shrimp or betta setups on a budget.
Dophin · Hang-on-back
A 40 to 100 litre tank where you want a simple hang-on filter you can fill with your own media.
Dophin · Hang-on-back
A beginner tank from 25 to 200 litres where a familiar, easy hang-on filter is enough.
Dophin · Hang-on-back
A 20 to 80 litre tank with a lid-free top where you want surface film gone without a separate skimmer.
Quick answers about the SunSun XBA Clip-On Filter, drawn from its specs.
Using the 5 to 12 times turnover rule for planted tanks: XBA-300 (300 L/h, suits roughly 25–60 L). Real flow with media and hoses is lower than the rated figure, so pick the bigger model if you are between sizes.
Pico and nano tanks, betta setups.
Carbon removes liquid fertiliser too, so swap it for sponge in a planted tank.
Other filters worth comparing: Boyu WF Waterfall Hang-on Filter, Dophin A Series Hanging Filter, Dophin H Series Hanging Filter. Add any of them to the compare table to see the specs side by side.