This is a discussion on Mycobacterium? within the Tropical Fish Diseases forums, part of the Freshwater Fish and Aquariums category; -->
How contagious is this bacteria from tank to tank?
Concerned as had a couple strains confirmed on a necropsy done at a fish from ...
Myco is very contageous. If you have a confirmed case in a tank you need to have separate everything for that tank. I have a rainbow tank that is infected. I have had this tank, and inhabitants for years. If the fish are kept in excellent water conditions, and fed a quality, varied diet they can live a relatively long normal life. Some of my bows have had this for quite some time. If you notice open red sores, or lumps starting on the fishes body you need to remove, and euthenize that fish. Be sure to wash any part of your hands and arms that are exposed to the water of the infected tank with anti bacterial soap, and use rubbing alcohol also on your hands. Transmission of this disease from tank water to human is rare but can happen.