Hi, fellow fish geeks!
I attached screen shots from an underwater webcam at Curacao (http://tinyurl.com/7q5hmdw). I snapped the first image around mid-day and the second image in the morning.
I think these guys slightly resemble rainbow runners or boga as shown in the Humann/Deloach Reef Fish ID F/C/B book. Fixing to load up the DVD to check out the alternate images; wanted to post here in the meantime. Whatcha think?
(Edited 4/25 to add another photo. Second photo shows yellow noses, which have me leaning toward boga.)