I also have the same lighting with a 40 gallon tall tank. The coral that has done the best for me is the Colt Coral but I also have, a few leathers, red and blue mushrooms, hammer, bubble, zoos, toadstool, chili coral, sun polyps, star polyps, and a brain. I also had a plate coral but it was the LT plate that didnt live long (think something happened to it when I took my rocks out of tank) but they only live 6-9 months according to the experts on this message board. Mushrooms are probably the easiest for a first coral but if you want something more the colt coral is great also.