Fungus is generally a sign of some other stress related issue. Stressors like rapid temp changes , spawning , overcrowding , poor nutrition , intense competition/predation and others can cause fungus. Determining what that/those stressors are would be the place to start. I have not seen normal supplemental feeding in a pond cause a fungus problem. If feeding is a large part of the fishes nutrition (aquaculture), crowded conditions, high competition , cages , pens etc then yes , but it is the conditions not the feed. Over longer time frames bad food may cause problems with diet and condition and may cause water quality problems.

Last edited by ewest; 12/20/17 11:43 AM.