I run 2 110 watt and 2 95 watt on my 90 gallon. I have toadstool, frogspawn, colt coral, green star polyps, lots of mushrooms, pulsing zenia and a very fast growing montipora digitana as well as a fast growing brown cap.
I seem to have no issues with this setup and these corals. if you want something hardy, go with mushrooms or a toadstool.
my mushrooms came on my live rock and servived the initial ammonia cycle.