FILTER OF AQUARIUM TANKS BIOCHEMICAL FILTER SPONGE FILTER SPONGE FOR AQUARIUM BIOLOGICAL FILTER CARTRIDGE FILTER INSERT FOR AQUARIUM TANKS FILTER OF AQUARIUM TANKS Effective to avoid residues and reduce fish mortality and chemical filtration and increase oxygen solubility in aquarium and aquarium. Strong filterability. It can be used repeatedly after cleaning. You can cut any size according to your needs. Suitable for sea water tank, fresh water tank, water plant tank. There may be slight differences in color and size between the photo and the actual item. I sincerely hope you understand! PACKAGING LIST 2 x filter BIOCHEMICAL FILTER SPONGE This filter insert is well made of the highest quality material, which ensures its durable and practical application. It best affects the distribution of feces and debris. Can be used in sea water tank fresh water tank tank for aquaplantation. And its strong filterability can stabilize water quality and reduce fish death. Function color: as shown. Material: sponge. Size: approx. 50x11x2 cm. It effectively prevents residue formation and reduces fish mortality and chemical filtration, as well as increases oxygen solubility in the aquarium and fish tank. Strong filterability. It can be used repeatedly after cleaning. You can cut any size according to your needs. Suitable for sea water tank fresh water tank tank for aquaplantation. because of the light effect Brightness of the monitor Manual measurement etc. There may be slight variations in color and size between the photo and the actual item. I sincerely hope you understand! FILTER SPONGE FOR TANK