Fish Tank Filter Cotton High Density Special Blanket $ 6.48 Features: The Biochemical Filter Has The Best Decomposing Effect On Feces And Grass Clippings. Its Porous Nature Will Prevent Clogging And Provide Maximum Adhesion Area For Bacteria. The Material Is Thick And Durable. Very Suitable For Use In Fresh Water And Sea Water. Various Sizes Can Be Cut According To Your Needs. Lightweight And Soft Design. Excellent Water Permeability. Cultivation Of Nitrifying Bacteria For Biological Filtration. The Dense Shape Makes It Effective To Avoid Residue. Can Be Reused After Cleaning. 100% Brand New Unused
