Boyu · Mains
CJY Series Air Pump
- Air output
- 1–15 L/min
Anyone wanting adjustable aeration, from a nano sponge filter up to a multi-tank air line.

Dophin · Mains
A tiny single-outlet air pump drawing just 1.2 W. Fine for a sponge filter or an air stone in a small tank.
Updated
Running a sponge filter in a shrimp or nano tank.
Output is modest, so it struggles with deeper tanks or more than one air device.
| Model | Air output | Outlets | Power | Tank size | Dimensions (L × W × H) | Pressure |
|---|---|---|---|---|---|---|
| AP2500 | 0.8 L/min | 1 | 1.2 W | 30–60 L | 10 × 5.5 × 7 cm | 0.014 MPa |
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 · Mains
Anyone wanting adjustable aeration, from a nano sponge filter up to a multi-tank air line.
Boyu · Mains
Budget aeration for one tank, or the S-4000B for a small rack of breeder tanks.
Boyu · Mains
Small to medium tanks running one or two sponge filters or air stones.
Boyu · Mains
Nano to medium tanks where a quiet, low-power pump is the priority.
Quick answers about the Dophin AP2500 Air Pump, drawn from its specs.
The maker rates it for tanks up to 60 L (from 30 L).
Running a sponge filter in a shrimp or nano tank.
Output is modest, so it struggles with deeper tanks or more than one air device.
Other air pumps worth comparing: Boyu CJY Series Air Pump, Boyu S Series Air Pump, Boyu SC Series Air Pump. Add any of them to the compare table to see the specs side by side.