Aquarium Sponge Filter Cleaning Water Tank Special Biochemical Sponge Aquarium Biological Filter Oxygenation Filter

Product Features: 1. Our products are sterilized and have an excellent safety guarantee. Biochemical cotton filter is a good removal of harmful impurities in the water, maintaining water circulation and stability. 2. Sponge filter easy to install, good permeability, can clean and recycle. Energy saving, sponge no dead clearance, no noise. Suitable for oxygenation, cultivation of beneficial bacteria, and filtration. 3. As a mechanical filtration, it use the air-driven system to create suction, that allows the sponge to capture floating particles in the water and return filtered water to the tank. 4. Provided for the bacteria in the aquarium beneficial to the growth of fish. As a biological filtration, harmful wastes are biologically transformed into a relatively harmless substance by aerobic bacteria that accumulates in the sponge. 5. Biochemical cotton filter for a variety of fish tank or aquarium breeding, special environmental protection and durability. How to Use: 1. It need to conn