Aquatop CAF-25 Sponge Filter for Nano Aquariums up to 25 Gallons

Aquatop CAF-25 sponge filter for nano aquariums up to 25 gallons.

It runs on an air pump or a powerhead and stays quiet.

The foam handles mechanical filtration and gives beneficial bacteria a place to grow.

It works in freshwater or saltwater, including breeder and hatchery tanks.