Suitable for use in small cylinders below 30 cm for oxygen filtration!
The multi-layer biochemical filter submersible pump sends oxygen from the bottom of the water through the intake pipe to the aquarium. The continuous flow of water allows the oxygen to diffuse to the aquarium with the water flow, and the carbon dioxide is brought into the air. The extraordinary design concept is combined with Filter cotton, even if it is extremely fine dirt; strong rubber suction cups are easy to install on the aquarium wall.
