Bio Sponge Filter Breeding Fry Betta Shrimp Nano Fish tank Aquarium 5 Gal (Mini)
Simply install an airline into the unit and provide both aeration and filtration for your fish. Material: Plastic, Sponge. Filter Color: Black. Filter Size: 2-1/8" X 2-3/4" (D H). Overall: 2-1/8" Dia.