Although feeding is not recommended in Indiana, if fish are being fed they will suddenly stop eating. Prevention Conditions leading to fish kills from aquatic plant die-offs and temperatures can be alleviated by controlling rooted aquatic vegetation and algae. When plants are dense, chemically treat only a portion of the pond at one time and allow that part of the vegetation to decay before further treatment. Briefly, this type of outlet releases water from the pond bottom. Contact the local Soil Conservation Service office for details on this construction.
Emergency treatment is suggested if signs of oxygen depletion are observed.
Steps should be taken immediately to prevent losses. Physical treatments 1. Flush the pond with fresh aerated water from a well or adjacent pond. Spray water from a 2 to 3 foot depth into the air with a pump. In small ponds, add oxygen by stirring the surface water vigorously with an anchored outboard motor.