One of my oldest friends has what appears to be a serious problem. My Saddle Back Clown whom I have had for over seven years and is approx. 6 1/2" long has one eyeball coming out of his head. He is still eating and swimming, but it looks terrible. Water perams are good the only tank mate big enough to do this is an 8" yellow tang. The tang and sb have never had any disputes to my knowledge. Please help, don't want to loose this guy.