Reusable Aquarium Filter Sponge for Fish Tanks Filter Media Foam for Aquarium

● Product Description: 
● Compared with ordinary 6D, it has stronger filtering effect. The new upgrade 
● Maintaining water quality in a purified aquarium 
● The Biochemical Filter has the best effect on decomposing the excrement and the forage leftover. Its multi-porous feature will avoid blockages and provide the largest adhesion area for bacteria.
● The material has great thickness, it is durable. Can be used again after cleaning. 
● Can be cut any sizes as your needed. 
● Cultivate the nitrifying bacteria for biological filtration. 
● Size： 17cm * 30cm *2.5cm
 Package Include: 1x Aquarium Filter Media