Biochemical sponge filter provides both mechanical and biological filtration. Simply install an airline into the unit and provide both aeration and filtration for your fish. In addition, the 4 1/2 inch sponge filter traps waste particles mechanical.

Aerobic bacteria in the sponge reduce the ammonia, nitrites, and surface deposits in the tank. Promotes better oxygenation while creating a wave effect for moving plants or anemones. Includes an assortment of adapters to fit the output tube of most pumps and filters.

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 biol...

In addition, the Aquarium Sponge Filter traps waste particles mechanically cleaning the water without trapping the fish.The sponge is designed and constructed with multilayer principle, provide larger surface area with no clogging.The Fish Tank Filter provides biological filtration to the aquarium,...