We have 3 P.J. Cardinals, all of them have ragged looking tail fins, and 2 of them have a single white spot on the center of their left eyes, however their eyes don't appear cloucdy. I have noticed this for a while. One of them is getting worse (the whole tail fin is almost gone) the other 2 appear to be getting better. There is one cardinal that has a longer tip on it's 2nd dorsal fin; this one bullies the other 2 cardinals around, so maybe it's aggression?