CerMedia MarinePure Plate Bio-Filter Media for Marine and Freshwater Aquariums 8 by 8 by 1-Inch

Ceramic Bio-Filter Media with Vast Surface Area AND Open-Flow Porosity. Designed for ammonia and nitrite removal in freshwater and marine aquariums. Use in sumps or in tanks under gravel easy to shape to fit in tight custom places and filters.

• Ceramic Bio-filter Media with Vast Surface Area AND Open-Flow Porosity
• Ammonia and Nitrite Removal
• Nitrate Reduction
• Inert Ceramic
• For SaltWater and FreshWater Aquariums