Boyu · Internal
SP-C / SP-B Internal Filter
- Flow
- 300–1,400 L/h
Quarantine, hospital or grow-out tanks, and simple community tanks that need an easy internal filter.

Eheim · Internal
The Aquaball is an internal filter with a ball-joint pump head, so you can point the outflow wherever you want surface movement. Foam cartridges handle mechanical and biological filtration, and there is a venturi if you want to add air.
Updated
Small to medium low-tech planted tanks, or as a backup filter and circulation boost on a bigger tank.
Switch the venturi off on a CO2 tank, as the bubbles will drive off the gas you are paying for.
| Model | Flow | Tank size | Power | Media volume | Max head | Flow range | Filter baskets | Dimensions |
|---|---|---|---|---|---|---|---|---|
| 60 | 480 L/h | 30–60 L | 5 W | 0.2 L | 0.4 m | 150 to 480 L/h | 1 | 9.6 x 16 cm (diameter x height) |
| 130 | 550 L/h | 60–130 L | 6 W | 0.3 L | 0.4 m | 180 to 550 L/h | 2 | 9.6 x 21.4 cm (diameter x height) |
| 180 | 650 L/h | 80–180 L | 6 W | 0.5 L | 0.4 m | 210 to 650 L/h | 3 | 9.6 x 27 cm (diameter x height) |
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 · Internal
Quarantine, hospital or grow-out tanks, and simple community tanks that need an easy internal filter.
Dophin · Internal
A larger tank that needs strong extra circulation plus some mechanical filtration.
Dophin · Internal
A mid-sized tank where you want an internal filter that tucks into a back corner.
Dophin · Internal
A basic community or planted tank where a simple sponge internal filter is enough.
Quick answers about the Eheim Aquaball, drawn from its specs.
Using the 5 to 12 times turnover rule for planted tanks: 60 (480 L/h, suits roughly 40–96 L); 130 (550 L/h, suits roughly 46–110 L); 180 (650 L/h, suits roughly 54–130 L). The maker rates the range for tanks up to 180 L. Real flow with media and hoses is lower than the rated figure, so pick the bigger model if you are between sizes.
Small to medium low-tech planted tanks, or as a backup filter and circulation boost on a bigger tank.
Switch the venturi off on a CO2 tank, as the bubbles will drive off the gas you are paying for.
Other filters worth comparing: Boyu SP-C / SP-B Internal Filter, Dophin 950F Series Internal Filter, Dophin F Series Internal Filter. Add any of them to the compare table to see the specs side by side.