Sponge filters are a biological filtration that builds up a colony a good bacteria that breaks down the ammonia and nitrite as water passes though them and also collect detritus to help keep a clean aquarium.
Uses air via a uplift system to draw water through the sponge. A low wattage air pump using air system and doubles oxygenating the water.
- Biological Filtration
- Air Driven
- Sponge size 4cm X 4cm
- Suitable for Aquariums up to 8 litres