Bret from Thomasville, Ga writes
If Cutrine Plus Algaecide is used in the correct areas and according to the product label it will not kill fish. The product label states not to use this product in waters containing Koi and Hybrid Goldfish and it is not intended for use in small volume, garden pond systems. Treatment of aquatic weeds and algae can result in oxygen loss from decomposition of dead algae and weeds. This oxygen loss can cause fish and invertebrate suffocation. To minimize hazard, do not treat more than ½ of the water body to avoid depletion of oxygen due to decaying vegetation. Wait at least 10 to 14 days between treatments.
Answer last updated on: 08/06/2019
