CerMedia MarinePure 1.5-Inch Sphere Bio-Filter Media for Marine and Freshwater Aquariums, 1-Gallon,White

• 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

Product Description Ceramic Bio-Filter Media with Vast Surface Area & Open-Flow Porosity. For ammonia & nitrite removal in fresh & marine aquariums. One MarinePure Sphere has the same surface area as 1,350 plastic bio-balls. Use in wet/dry filters, sumps or canister filters. Directions Clean the filter media before use, place the required amount in the filter (the quantity may vary depending on the type and size of the filter) and check the water parameters to ensure efficient filtration.