Aqua One FilterAir 136 Large Air Operated Sponge Filter

Aqua One FilterAir 136 Large Air Operated Sponge Filter 12wx24hx12cm Aqua One FilterAIr Sponge Filter Large is 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. Features & Benefits: Weighted base Easy to assemble Simple to maintain Hollow centre allows carbon to be added Safe to be used with baby fish of any size Can be operated with an air pump or water pump Biological Filtration Sponge size: 12cm Suitable for Aquariums up to 100 litres This filter is air or water pump operated and needs an air pump or water pump to run it. Air pumps and water 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.