Easy to clean, simply rinse and squeeze sponge under cool running water.
This filter should use with air pump, air pump is not included here.
Biochemical filter provide both aeration and filtration for your fish.
The Fish Tank Sponge Filter featuring a weighted plastic base that keeps the unit from floating during use.
Squeeze the sponge filter in tank water or cold water for 5 mins for 1st using, easy to digest form colonies of bacteria.