Percula not eating

[sick percula]

Please help, I've had 2 Percula clown fish from the very start of my aquarium, now one is sick! He keep's to hisself (the two were inseperable) Not eating anything that I can see. Slow moving, 75% of the time, but has moments when he'll swim with the rest of the fish, and has times when he just lies on a rock and appears to be dead. This has been going on for approx. 5 weeks now, and the only treatment Ive tried so far are 2 freshwater dips. Open to any suggestions, Sticker.

 

[beth]

Unfortunately, I had this same thing happen to my female perc a few months ago. I must say she lasted that way for several month but finally died.
I saw no real sign of disease, until the very end when it was too late. She developed severe inflamation on one gill. I treated heavily with antibotics, but she died. This problem, I am sure occurred too her being sworded by a hippo tang. I never saw a wound, but I know that the hippo was being aggressive. Is the fish being harrassed? Don't assume that just because all your fish have been getting along fine, that there's no reason for concern. The hippo and the clowns were raised together and were perfectly fine, until one day the hippo got mean.