This aquarium filter features a biochemical sponge designed for biological filtration in fish tanks, enhancing water quality and oxygen solubility with quiet operation.

• Dimensions: 170mm x 235mm; Sponge size: 120mm x 60mm

• Material: Black sponge with suction cup attachment

• Provides biological filtration to stabilize aquarium water quality

• Increases oxygen solubility in the tank water

• Operates noiselessly for a quiet environment

• Good permeability and easy to clean

• Includes 1 biochemical sponge filter and 1 filter sponge

• Requires connection to an air pump (not included)