I have a 110gal tank, currently FOWLR, but was a mixed reef tank. A wild mated pair of Maroon clowns, 2 damsels and at one time 7 chromis, made up the former inhabitants. If I had to do the tank over [former] I'd stick with the chromis for lot's of reasons...great fun to watch as they school together, easy to keep, attractive and last but not least, inexpensive [as far as the hobby goes!]. Now I'm down to a Humu Humu and a lawnmower blenny. The Damsels were a bit on the aggressive/nasty side and the Clowns were quite attractive and kept to themselves, but I really enjoyed the Chromis. Maybe Anthius [sp]. Also very attractive schooling fish.