8 Gallon Nano 180 Replacement Filter Sponge 6 pack MT-302-FS
Six replacement sponges for the JBJ 180 Degree Nano Cube. For use with freshwater and saltwater aquariums. These sponges remove particulate matter from your fish tank. It is recommended that you replace your sponge in your filter every month or so. However, if you replace your sponge the same time as your other filter media, you will lose too much beneficial bacteria.