#1 A unicorn tang?
#2 A grouper? It has that look to it.
#3 A lionfish! The only one I know for sure.
#4 A silver tang (center), maybe? And a wrasse (second left)? With maybe some kind of damselfish(left)? I want to say the striped guy in the back is some kind of butterfly fish but I'm almost certainly wrong. lol :I