Traditional Style Air Driven Sponge Filter - Choice of 3 Sizes

High quality aquarium sponge filters in a choice of 3 sizes. Please see detailed sizes below.

Aerobic bacteria colonise the sponge providing a bacterial surface to facilitate the nitrogen cycle. In addition, the sponge traps larger waste particles and mechanically cleans the water without trapping baby fish. They are useful as a breeding filter or as a secondary filter in the aquarium. These sponge filters can also be used as pre filter to an external filter inlet pipe.

The small sponge filter measures 7.5cm Diameter x 6.5cm Tall. It is suitable for aquariums up to 7.5 gallons.

The medium sponge filter measures 12cm Diameter x 6.5cm Tall. It is suitable for aquariums up to 10 gallons.

The large sponge filter measures 12cm Diameter x 11.3cm Tall. It is suitable for aquariums up to 20 gallons.

A suitable air pump with air line must be used to run these filters (not supplied, but are available separately in our store).