Blue Circle Filter Wool
Filter Wool helps keep water clear and free of impurities, by replacing weekly it allows you to easily remove any foreign objects, like left over food, plant leaves from your tank to reduce the load on your bacterial filtration.
Removes free floating debris for a cleaner tank
Can be cut to fit any size or shape filter
About 30cm Height x 37cm Length
Made Specifically for: All coldwater, tropical and marine tanks.