Mine is a new tank started on June 26 of this year. I have so far 4 fish and 26 frags a mix of sps, lps, and softies and a clean up crew. So far so good, of course the highest i go with those lights is 60%. Nothing is browning out or bleaching nice colors and the frags are growing.
Mine is on a gooseneck at about 9" from the tank.
If you can spend a perfectly useless afternoon in a perfectly useless manner, you have learned how to live. - Lin Yutang