Penn Plax Cascade Canister Bio Sponge are convenient replacements to keep your Cascade filter running at peak efficiency. These durable bio-sponges optimize colonization of beneficial aerobic bacteria, allowing the filter to remove ammonia and nitrites fro
Penn Plax Cascade Canister Bio Sponge are convenient replacements to keep your Cascade filter running at peak efficiency. These durable bio-sponges optimize colonization of beneficial aerobic bacteria, allowing the filter to remove ammonia and nitrites from your aquarium.
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