Lots of warm water fish species are more prone to fungus in colder water when they are injured, stressed and not eating. It is not uncommon. Many of the small fish that get this are eaten by larger fish early in the fungal development.

Last edited by Bill Cody; 03/13/14 03:06 PM.

aka Pond Doctor & Dr. Perca Read Pond Boss Magazine -
America's Journal of Pond Management