XY-168 Mini Biochemical Cotton Filter

* With an airlift system, super biochemical sponge filter features silent operation, and has an excellent filtering effect while oxygenating the water. The special developed foam materials support the colonization of bacteria growth. It allow for mechanical filter in addition to biological filtration, which will break down harmful waste, ammonia and nitrite material. It result in a cleaner living environment for fish, particular they are useful for as breeding filter or as secondary filter.