BOYU Biochemical Sponge Filter

FEATURES:

This simple internal filter works with the power of any air pump connected to it by means of a flexible hose.

It can also be used as a pre-filter for external filters or power heads.

Sponge filters provide a suitable mechanical and biological filtration, according to the size of the filter and the bio load of the aquarium.

They are cost-effective as they consume only a tiny amount of power to pump the air needed.