Sera’s Nitrite-minus immediately removes up to 1.5 mg/l nitrite per dosage from the aquarium water and provides immediate help in case of acute pollution by nitrite (i.e., the dreaded new tank syndrome). It binds the toxic nitrite and converts it into harmless organic amines that can be utilized by the filter bacteria. Re-dissolution of nitrite is, therefore, not possible. The product is very well tolerated by ornamental fish, invertebrates and plants, and can be dosed up to fivefold. It is a reliable and safe solution for preventing elevated nitrite levels, e.g., during the start phase of a new aquarium, after a disease treatment or after a filter change, the company states.