Xinyou Super Biochemical Sponge Air Filter

Xinyou Sponge Filter Air Operated Xinyou Sponge Filter Air Operated are a mechanical and biological filter that adds oxygen to the water while supporting colonisation of bacteria to assist with the breakdown of harmful waste like ammonia. It provides your fish with a cleaner living environment. Biological Filtration Air Driven Suitable for 40L< This filter is air operated and needs an air pump to run it. Air pumps are sold separately. Sponge filters are a biological filtration that builds up a colony a good bacteria that breaks down the ammonia and nitrite as water passes through them and also collects detritus to help keep a clean aquarium. Uses air via an uplift system to draw water through the sponge. A low wattage air pump using air system and doubles oxygenating the water. Simply connect to an air pump (Not included).