AQUANEAT Aquarium Activated Carbon Filter Media Pad for Fish Tank Pond Canister Filter (10.5" x 18")

Activated carbon impregnated filter pad effectively traps large particles, removes discoloration, odor, pollutants, and harmful chemical to keep your aquarium crystal clear. DIY Cut-to-fit filter pad, good to use in freshwater and saltwater aquariums. Works with all filters: canister, hang-on filter, wet/dry, pond filters, DIY filters. To ensure optimum performance, replace the filter pad every three to four weeks depending on waste load of the fish tank.