Penn-Plax Cascade 500/350 GPH Canister Filter Aquarium Bio Sponge Replacement; 1 Pack, Blue

• Optimizes the colonization of beneficial aerobic bacteria.
• Removes ammonia & nitrites keeping your aquarium healthy.
• International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions.

The bio-sponge filter with Bio-Sponge filter works to keep aquarium water clean and clean. Specially designed to fit the Cascade canister filter pump, Bio-Sponge filter media optimizes the colonization of beneficial aerobic bacteria and removes ammonia and nitrites that keep your aquarium clean and healthy. Bio-Sponge filter media from Bio-Sponge come in various sizes to suit your Cascade Cannister waterfall filter pump accuracy. For canister type filter pumps only.