XY-2835 Aquarium Sponge Filter
Size: 2.5"D x 3"H
With an airlift system, this sponge filter features a silent operation and has an excellent filtering effect while oxygenating the water. The special developed foam material supports the colonization of bacteria, allowing mechanical filtration including biological filtration which breaks down harmful waste such as ammonia, nitrite, etc. Your tank will result in a much cleaner environment, making this useful for a breeding filter, a hospital or quarantine tank or even as a secondary filter!