Very nice, how many heads does that Duncan have? I bought a couple last month and they seem too grow pretty quickly when fed. Started with (1) and (3) heads and now have (4) and (6)or(7) each. Smaller little heads of course, but I enjoy the progress.
I agree with InLimbo, your profile is blank...what size tank is that? I like how you have the front open for swimming but all those corals and clams in the sand, very nice looking setup.