Experience efficient filtration with the Oceanmax Bio Sponge, sized 100x100x4cm and rated PPI 10. This large bio sponge provides high-capacity mechanical and biological filtration, capturing fine particles and supporting beneficial bacterial growth for clean, balanced aquarium water. Durable, washable, and suitable for both freshwater and marine setups, it’s ideal for various filtration systems and designed for long-lasting maintenance with minimal effort.