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 aqua is a slim internal filter shaped to sit in a back corner, which leaves more open space for the scape. Filter modules clip together, so you can add another cartridge later if you need more capacity, and there is a small media box for carbon or bio media.
Updated
Beginner planted tanks of roughly 100 to 200 litres where you want something simple that hides in a corner.
The listing does not give a flow figure, so on a CO2 tank you may want a separate circulation pump to be safe.
| Model | Tank size | Dimensions |
|---|---|---|
| 200 | 100–200 L | 6.6 x 6.6 x 24.3 cm |
Figures from Charterhouse Aquatics's product listing. 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 aqua Corner Filter, drawn from its specs.
The maker rates it for tanks up to 200 L (from 100 L).
Beginner planted tanks of roughly 100 to 200 litres where you want something simple that hides in a corner.
The listing does not give a flow figure, so on a CO2 tank you may want a separate circulation pump to be safe.
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.