Ugg, one hippo tang died....I suspect the other one might have been beating up on him, but idk. Good thing is the one is really active and healthy, so idk what is up.
Your list looks pretty good. As far as additional fish I have always loved purple tangs but those fish from the Red Sea are always pricey. An angelfish that I have had a great time with is the coral beauty. It's not to big, very peaceful and looks gorgeous.