Gimp Fin

[keith&erin]

I just noticed that my percula is only using one fin to swim with. The other fin stays stuck to its side. Earlier today it was fine, or at least seemed to be. It is still active and eating plenty. To us, it looks like the gimp fin is withering. We only have 2 damsels and the percula, and they get along great, so we don't think it was attacked. Any ideas?

 

[xdave]

Does the fin have anything on it?
P.S. There is a section just for disease down the board a little ways where you'd get faster help.