Reusable 8D Filter Foam Cotton Sponge Filter Aquarium Filter Media 30x20cm (upgrade)

DescriptionReusable 8D Filter Foam Cotton Sponge Filter AquariumFilter Media Size: 20x30x2cm Package include:1 X Aquarium Filter Sponge✅The Biochemical Filter has the best effect ondecomposing 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. ✅ Dense shape makes it effective to avoid residue.