This high-quality replacement filter sponge is designed for superior mechanical and biological filtration. The coarse porous structure efficiently traps large debris and fish waste, while providing an expansive surface area for beneficial nitrifying bacteria to thrive. It helps maintain crystal-clear water and a healthy environment for your aquatic pets.
Coarse Bio-Foam Filter Sponge (Green)
Made from durable, open-cell polyether foam that is 100% pet-safe and non-toxic. It is designed to be cut-to-size, making it compatible with a wide range of internal, external, and sump filtration systems. Rinseable and reusable for long-lasting performance.

























