Aqua-Fit Triangle Sponge Filter

The Aqua-Fit Triangle Sponge Filter is a simple filter that is ideal for baby fish tanks or quarantine tanks. The sponge will prevent small fish from being sucked up, and it will not filter out any medications. They perform mechanical filtration, allowing small particles to be caught in the sponge, and they will quickly build up healthy bacteria to work as a biological filter. The sponge filter can be driven by an air pump (not included) to increase filter flow and aeration.