Previously sold under the name Lymnozyme, Koizyme is a liquid containing bacteria and enzymes designed to kill & outcompete the bacteria which cause ulcers in Koi. It will reduce the populations of hazardous Aeromonas and Pseudomonas in your pond to insignificant levels. KoiZyme works to reduce the incidence and severity of ulcer disease in Koi and Goldfish. Affordable and safe.
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