Awe...

If this is a genetic defect or a sign of serious illness, I doubt he is suffering at this point... especially if he is eating... b/c we have to assume that if he was in extreme pain or discomfort, he would not be eating. I've always kept Dr. Barb's advice in the back of my mind for future reference for any of my fish... "I wouldn't euthanize a fish that is still eating". If his condition changes for the worst, and he stops eating... then that will be a different story and we can weigh the symptoms (together, if you like) to conclude which route is the best for him.

Please do keep us posted on how he's doing... and ensure his water params are pristine in his hospital tank.

Michele