Unique Bargains 2 Pcs Round Yellow Biochemical Filter Sponge for Aquarium Fish Tank

Provides biological and chemical filtration and increase the oxygen solubility in aquarium and fish tank. Dense honeycomb shape makes it effective to avoid residue and reduce the death rate of fish. You can cut the size as you need. Can be used again after cleaning.

Color : Yellow Size : 7x 6cm/ 2.4" x 2.4"(H*D) Weight : 7g Package Content : 2 x Biochemical Filter Sponges