Combat stubborn nitrate levels with greater ease. Cobalt Aquatics Anti-Nitrate Filter Resin is a high-capacity nitrate removing resin that comes pre-bagged for ease of use and replacement. Nitrate is rapidly removed from pond water resulting in a healthy environment for koi, goldfish and other pond fish and invertebrates. Anti-Nitrate is safe for fish, plants and invertebrates and can remove up to 30 mg/l of nitrate on the first day of use and up to 5 mg/l for 15 days. 5.0 oz jar includes two 2.5 oz bags for easy use and replacement.
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Please click "More Information" for the importance of nitrate removal in ponds and water gardens.