I need help with this damselfish. This fish is located on an artificial reef in about 50 feet of water in the northern Gulf of Mexico (Mexico Beach, Florida) I can't find a damselfish in my fish books that has these flourescent blue margins. One of my fish expert buddies thought it could be a different color variation of the Dusky Damselfish; however, I have never seen orange and blue juveniles in years of diving this area. The juveniles around here are usually some variation of blue and yellow, for instance, the one I have pictured is very common here and is probably a Cocoa Damselfish (note black spot on base of tail). Thanks for your help.