Penn-Plax presents the Cascade 400 Filter Replacement Bio-Sponge. This Bio-Sponge is specifically designed for the Cascade 400 Fully Submersible Internal Filter (CIF2), and serves as a replacement for when it's time to cycle out filter media. The Bio-Sponge aids with keeping the water inside your tank crystal clean, allowing for a safe and healthy environment.
Physical & Biological Filtration: This replacement Bio-Sponge optimizes the colonization of anaerobic bacteria, along with providing mechanical filtration that traps large particulate matter.
1-Pack: The package only contains a single Bio-Sponge. Although they are disposable, they can be reused time and time again. Simply clean the Bio-Sponge in a separate container with some of your aquarium's water. This allows for the colony of anaerobic bacteria to remain intact with the Bio-Sponge.
Measurements: 2. 2" (L) x 2. 3" (D) x 4" (H).
Shop Penn-Plax for All Your Pet's Needs: Penn-Plax is a manufacturer and distributor of top quality pet supplies, who specialize in creating excellent pet products for animals, both great and small.
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