It has three functions: oxygenation, water circulation and filtration. The large-capacity filter box is equipped with biochemical filter cotton, which can cultivate nitrifying bacteria and has good filtering effect. Large-capacity filter box, easy to disassemble, can be used with filter accessories, and the effect of water purification and sterilization will be better. The body adopts a glue-filled body, which has high sealing performance and good sealing performance. It can absorb dirt without dead corners and remove fish excrement and food residue. Using high-strength, quiet, high-speed wear-resistant pads, longer service life .
