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
Pick-up filters are small sponge internals that stick to the glass with suckers. The motor stays put while the sponge housing slides off for rinsing, so you do not have to unclip the whole thing or wrestle the cable.
Updated
Nano and small planted tanks, quarantine or shrimp tanks where a canister would be overkill.
Media volume is tiny, so biological capacity is limited and the sponge needs rinsing often on a well-fed tank.
| Model | Flow | Tank size | Power | Media volume | Max head | Flow range | Dimensions |
|---|---|---|---|---|---|---|---|
| 452006 | 180 L/h | up to 45 L | 3.5 W | 0.1 L | 0.4 m | 50 to 180 L/h | 6.3 x 5 x 13.5 cm |
| 602008 | 300 L/h | 30–60 L | 4 W | 0.2 L | 0.4 m | 150 to 300 L/h | 9.6 x 7.5 x 16.3 cm |
| 1602010 | 500 L/h | 60–160 L | 6 W | 0.3 L | 0.4 m | 220 to 500 L/h | 9.6 x 7.5 x 22.8 cm |
| 2002012 | 570 L/h | 150–200 L | 6 W | 0.5 L | 0.4 m | 220 to 570 L/h | 9.6 x 7.5 x 28.5 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 · 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 Pick-up, drawn from its specs.
Using the 5 to 12 times turnover rule for planted tanks: 45 (180 L/h, suits roughly 15–36 L); 60 (300 L/h, suits roughly 25–60 L); 160 (500 L/h, suits roughly 42–100 L); 200 (570 L/h, suits roughly 48–114 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.
Nano and small planted tanks, quarantine or shrimp tanks where a canister would be overkill.
Media volume is tiny, so biological capacity is limited and the sponge needs rinsing often on a well-fed tank.
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.