Help keep your underwater buddies’ aquarium in tip-top condition with the Penn-Plax Cascade Aquarium Bio-Sponge 700 & 1000 Filter! This canister filter is designed to be used in the Cascade 700 to 1000 model. It can help optimize the colonization of beneficial aerobic bacteria while removing nitrites and ammonia, keeping your tank free from unpleasant odor and grime. Every purchase comes with one medium filter.
Helps keep your aquarium water clean for your finned friends.