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.

SunSun · Internal
Tiny internal filters from 200 L/h, plus a few larger HJ-5x2 models up to 1,200 L/h. Several are used in SunSun's desktop tanks.
Updated
Pico, nano and small tanks.
| Model | Flow | Power | Max head | Dimensions (L × W × H) | Cable | Outlet adapters |
|---|---|---|---|---|---|---|
| HJ-111B | 200 L/h | 2 W | 0.5 m | 3.2 × 3.8 × 10.5 cm | 1.5m | – |
| HJ-311B | 300 L/h | 2 W | 0.6 m | 3.6 × 4.4 × 13.3 cm | 1.5m | – |
| HJ-411B | 300 L/h | 2 W | 0.6 m | 3.6 × 4.4 × 11.5 cm | 1.5m | – |
| HJ-611B | 450 L/h | 6 W | 0.9 m | 4.3 × 5.3 × 16.3 cm | 1.5m | – |
| HJ-532 | 350 L/h | 5 W | 0.6 m | 6 × 4.2 × 17 cm | 1.5m | 13mm |
| HJ-732 | 550 L/h | 8 W | 0.8 m | 6.7 × 5.2 × 18.2 cm | 1.5m | 13mm |
| HJ-752 | 600 L/h | 10 W | 1.1 m | 7.6 × 5 × 15.2 cm | 1.5m | – |
| HJ-952 | 800 L/h | 16 W | 1.4 m | 9.5 × 6.2 × 28.7 cm | 1.5m | – |
| HJ-1152 | 1,200 L/h | 22 W | 2 m | 11 × 7 × 33 cm | 1.5m | – |
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 SunSun HJ-B Series Mini Internal Filter, drawn from its specs.
Using the 5 to 12 times turnover rule for planted tanks: HJ-111B (200 L/h, suits roughly 17–40 L); HJ-311B (300 L/h, suits roughly 25–60 L); HJ-411B (300 L/h, suits roughly 25–60 L); HJ-611B (450 L/h, suits roughly 38–90 L); HJ-532 (350 L/h, suits roughly 29–70 L); HJ-732 (550 L/h, suits roughly 46–110 L); HJ-752 (600 L/h, suits roughly 50–120 L); HJ-952 (800 L/h, suits roughly 67–160 L); HJ-1152 (1,200 L/h, suits roughly 100–240 L). Real flow with media and hoses is lower than the rated figure, so pick the bigger model if you are between sizes.
Pico, nano and small tanks.
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.
9 options: HJ-111B, HJ-311B, HJ-411B, HJ-611B, HJ-532, HJ-732, HJ-752, HJ-952, HJ-1152.