I have a 75 gallon with four 65 watt T5 bulbs, 2 actinic, 2 white. My tank is only 20 inches tall and I have been successfull with leather corals and BT anemonies, infact, my anemone periodically clones and seems to be thriving. The BTA moved around for a few days and settled at the bottom of the tank partially below a ledge.
I am just now trying Zoas, Pallies, and polyps but, if the anemonie is doing well, those should get adequate lighting.
I think tank depth is very important to lighting issues and tall tanks do not get enought light penetration for the lower levels.
Mike