This is juvenile I'm guessing

but there were so many of them in Wakatobi, I didn't even think to ask the guide what they were. I'm sure someone here does 'cause a lot of knowledgeable people hang out here. Thanks.

I'm no expert, but I think this is a reticulated Dasycllus. Good job at getting a close up. They are notorious skittish. Here is one of mine

Yes, it is Dascyllus reticulatus:

http://www.austmus.gov.au/fishes/fishfacts.../dreticulat.htm

They're fairly common around here on Ningaloo Reef too: