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.
4 models
Eheim · Internal
Eheim Biopower
Biopower takes the Aquaball pump head and adds closed baskets filled with SUBSTRATpro, so it behaves more like a small canister hung inside the tank. It comes with a spray bar and a venturi, and the flow is adjustable.
Updated
550–750 L/h3 models
Will it suit my tank?
litres
Best for
Medium planted tanks without room for a canister, or tanks with a heavier fish load that need more biology than a basic internal.
Worth knowing
It is a tall column inside the tank, so plan your hardscape to hide it.
What stands out
- Closed baskets of SUBSTRATpro for more biological capacity than a sponge filter
- Spray bar included for gentle surface movement
- Swivelling, adjustable pump head
- 6 to 8 W running power
Models and specs
| Model | Flow | Tank size | Power | Media volume | Max head | Flow range | Dimensions |
|---|---|---|---|---|---|---|---|
| 160 | 550 L/h | 80–160 L | 6 W | 0.4 L | 0.4 m | 180 to 550 L/h | 9.6 x 21.5 cm (diameter x height) |
| 200 | 650 L/h | 100–200 L | 6 W | 0.5 L | 0.4 m | 210 to 650 L/h | 9.6 x 27 cm (diameter x height) |
| 240 | 750 L/h | 160–240 L | 8 W | 0.7 L | 0.6 m | 280 to 750 L/h | 9.6 x 32.5 cm (diameter x height) |
- Brand
- Eheim
- Mounting
- Suction cup holder
- Water type
- Freshwater and marine
- Includes
- Spray bar and venturi diffuser
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
Dophin · Internal
950F Series Internal Filter
- Flow
- 470–1,550 L/h
- Tank size
- up to 300 L
A larger tank that needs strong extra circulation plus some mechanical filtration.
4 models
Dophin · Internal
F Series Internal Filter
- Flow
- 360–800 L/h
- Tank size
- up to 160 L
A mid-sized tank where you want an internal filter that tucks into a back corner.
3 models
Dophin · Internal
FB Internal Filter
- Flow
- 300–760 L/h
- Tank size
- up to 140 L
A basic community or planted tank where a simple sponge internal filter is enough.
4 models
Frequently asked questions
Quick answers about the Eheim Biopower, drawn from its specs.
What size tank is the Eheim Biopower good for?
Using the 5 to 12 times turnover rule for planted tanks: 160 (550 L/h, suits roughly 46–110 L); 200 (650 L/h, suits roughly 54–130 L); 240 (750 L/h, suits roughly 63–150 L). The maker rates the range for tanks up to 240 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 Eheim Biopower best for?
Medium planted tanks without room for a canister, or tanks with a heavier fish load that need more biology than a basic internal.
Is there anything to watch out for with the Eheim Biopower?
It is a tall column inside the tank, so plan your hardscape to hide it.
What are the alternatives to the Eheim Biopower?
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.