ITEM NAME:Aquarium Fish Tank Biochemical Bio Sponge Foam Filter Oxygen Fry Air Pump NW.(The filter with biochemical sponge uses air pump as the power source, gas lift power is large, no noise, can improve oxygen content in water. 2) Sponge height: 4.8cm / 1.89 in. To enhance the quantity of water dissolved gas for the breeding, no noise, saving electricity.
