Hydor High Quality Professional Filter Pads for Filters Professional 150Hydor Professional Canister Small White Filter Pads are designed to be in the final stages of the canister filtration sequence in order to remove the finest particulate matter from aquarium water. Offers maximum performance and high filtration to remove debris, dirt and bacteria from fresh water and salt water aquariums Simplify the process of obtaining crystal clear water This professional white floss pad filter media for aquariums is specifically