Symptoms and Control of Branchiomyces Fungus, BGD in Koi and Pond Fish

This is a warmwater gill fungus. I’ve had this in a collection of my own fish, one winter when the fish room was very warm, but the lack of sunlight, and high nitrates were stressing the fish. Then the gill fungus hit. If I had been replacing water all the time, it wouldn’t have happened.  … Read more