MarinePure CerMedia Block - Ceramic Bio-Filter Media 8x8x4

Improve your aquarium water quality with MarinePure CerMedia Block. This high-performance ceramic bio-filter media is designed for both marine and freshwater environments. Made from naturally occurring pumice, it features a vast surface area and open-flow porosity to support a healthy biological ecosystem. This media serves as an effective alternative to deep sand beds or live rock, providing a more compact way to manage your nitrogen cycle. It is specifically designed to target the removal of ammonia and nitrites while working to minimize nitrate levels in your tank. Whether you are using a sump or an extra large canister filter, this block provides the biological support needed for stable water chemistry. Note that the media is an inert ceramic and may range in color from white to light brown. As the media begins to work, it is normal to see a light film develop on the surface. This film is a sign that the bio-filter is functioning as intended to help maintain a clean environment for your aquatic pets.