Features: This Aquarium Filter Media is well-made of good class materials, durable and practical. Effectively remove some bad substances in water. Use these fish tank filter materials to absorb impurities, purify your water naturally. Fine workmanship ensures the efficiency of water purification. Features -Color:As Shown -Material:Activated carbon -Size:10.00X10.00X10.00cm/3.93X3.93X3.93in -Through the mesh structure, the adsorption and filtration effect is greatly improved, the water quality is quickly and effectively purified, and the clear and healthy water quality is maintained. - Activated carbon has strong physical adsorption and chemical absorption in the adsorption of certain organic compounds to achieve removal efficiency. - It can effectively and quickly remove harmful aquarium water substances, odors, and heavy metals. - It can purify and soften the effectiveness of water quality, etc., in order to obtain direct and rapid improvement of water quality. - Made of high-grade materials, durable and safe to use, it can eliminate odors, unsightly discoloration, and harmful organic substances. Package list: 1 x Aquarium Filter Media