I have a 6" Scienochromis Fryeri in a 100 Gallon tank w/ similar sized mbuna
and other fryeri, and several sun cats.. All has been pretty normal in the
tank for a while. Today I saw this fryeri with fins all frayed and stringy.
The body, which was quite brilliant blue, had turned mottled red and green
in large spots. The fish was really struggling to swim. I removed it
promptly to a 40 Gallon recovery tank. I looked in on it tonite, and it was
upside down on the gravel (not on its side) and breathing very weakly. This
was not a "runt" in the tank. This fish has been fairly high onthe pecking
order, and he isn't even the smallest of the fryeri... I don't see any signs
of aggression among the other fish. I suspect the markings etc came from
aggression, but the color seemed wierd. Its probably going to die soon
enough, but I would like to diagnose the problem so I can take corrective
measures now... most of the fish in the tank are my favorites.

Any suggestions?