It's not too much light. I have an 6 x 24w ATI PM on a LPS 25 gallon. My tank is only 14" high. My fixture is 6 inches from the water surface and most of my 30+ Aussie Acan colonies are 2-4 inches below the water surface and all of them are doing just fine. As with all corals just acclimate them properly.
Last edited by JMes; 10-07-2010 at 04:06 AM.
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