I am running 4 t5's running on icecaps, with individual reflectors, plus 2 VHO actinics. My tank is so damn bright. I have acros on the bottom of my 90 that have amazing polyup extention. I have great colors. I have a carpet that is in heaven, I can not keep chalice unless under shelves. My tank is primarily sps frags and they are all doing pretty good. I lose one every now ant then, but I think it was my acclimation process, which has been refined.
I love my t5s