Images: 

I think these are snappers.  Notice the tails; they are fan shaped, not forked, nor lunate, nor straight.  For a side view, look at the fish upper right.  I apologize for the photo; I, too, wish it were better.

Photo taken December 4, 2007, Molasses Reef, buoy M2, Key Largo, Florida.  28 feet of water.  77 degrees Fahrenheit bottom temperature.  This school of large (+/- two feet in length) snappers was barely moving, just around the corner from a large, barely moving Nassau grouper.

 Do you know if it is a snapper, and can you identify the species?

 Marty