Fish Tank 4 Layer Sponge Biochemical Water Corner Filter Cleaner Black
Simply install an airline into the unit and 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, and cylinder design to eliminate dead space between the filter.Provides both mechanical and biological filtration.Easy to clean, simply rinse and squeeze sponge under cool running water.