Red eye tetra scales peelin..

Hi there, I have a community tank with about 20 fish which has been up & running for about 3 months. My three red eye tetras have some kind of problem with their skin... on the sides of the fish, the scales/skin seems to be peeling and are a whitish grey colour. Also one of them is very red in the gill area. None of my other fish seem to be affected by this, including my serpaes & neons. I've been trying to find information on the net, but can't see any pictures that look similar other than 'saddleback disease', but this is somewhat different looking. Anyway, if anyone can offer suggestions as to how I can treat this or where to find info on something that sounds similar, I would appreciate it. Thanks!

When you say peeling, do you mean that scales are actually coming off of the fish or it appears that a film is peeling off of them? How long has the condition existed and have you recently added any fish to the tank? If so what did you add and how long ago? Does the material that is peeling off seem to be fuzzy in any way or is it more of a slime consistency? Are you seeing actually muscle under the skin where skin has peeled away? Are the fins involved in any way? Did you notice a starting point on the fish that this spread from? Is it the entire side of the fish or spots of the problems? If spots, are they round or many shapes? Are the spots red in the center? These will make a reasonable diagnosis possible, with out that info anything would really be a wild guess. Please add the info to the question and I'll check back and edit my answer or you can feel free to email me the info.