I have fresh water fish, one of the types blood fin tetra is having major problem the face of the fish is mysteriously being eaten away had 15 of them and im loosing 1 or 2 a day all other fish ok any one know whats wrong thanksa
Sounds nasty! First thing that comes to mind is Columnaris. It is a bacterial infection that eats away at a fish's mouth (usually). It's very contagious and fast moving. How are the tanks water parameters? http://badmanstropicalfish.com/fish_...ation.html#ERM
This site contains some info on it and some pictures.