Dual-Density Aquarium Filter Sponge

Protect your aquarium's mechanical filtration with this dual-density sponge designed to trap debris while maintaining excellent water flow. The two-layer construction effectively captures both large particles and fine sediment, keeping your tank crystal clear. Dual-density design with an open top layer for large debris and a dense bottom mesh for fine particles Constructed from safe, dye-free cotton material that is non-toxic to all aquatic life Compatible with wet/dry filters, sumps, canister f