Blue Filter Sponge

Coarse Aquarium Sponge provides excellent mechanical and biological filtration for both freshwater and marine systems. The open-cell design effectively traps larger debris while allowing high water flow. Its durable foam structure offers ample surface area for beneficial bacteria to thrive, helping to maintain a healthy and stable aquarium environment. Ideal for use in sumps, canister filters, or as a prefilter. Easy to rinse and reuse.