VAYINATO Xinyou XY-2822 Aquarium Bio Sponge Filter | Specific Application for Discus, Sponge Aquarium Filter  (Biological Filtration for Salt Water and Fresh Water)

Feature: 1) The sponge filters are made of excellent and perfect material; it can be reused for long time. 2) The sponges of filter are designed by multilayer principle, it has large surface, which will not cause blockage and could be wash easily. 3) When using in filter system, the sponge filter will not cause any noise pollution. 4) When using air stone which will produce air supply for the aquarium tank, it will increase oxygen level in the tank. 5) The sponge filter had gone through tough test in all expected situation for the perfect quality. Hints for successful operation Soak the sponge in the aquarium water for 5 minutes before use will help nitrifying bacteria colonies easier. Always use aquarium water to rinse clean the sponge, never use hot water.