Couple of reef shots from my GoPro. (These particular ones don't have fish; I liked the coral formations--but fish are varied and plentiful.) Hawaii diving is quite different than the Caribbean where I've done most of my diving; there are many more species of fish and fewer soft corals. The sites I've seen off the Big Island are in far better condition than the ones I've seen in Oahu and Maui.
These were all shot with no lights; the two bluer ones are about 60' deep using a red filter; the others were in less than 8' of water while snorkeling. Gives you an idea of how much color and light the water absorbs as you descend.