I'm tending toward doing that. I planned on going to the LFS tomorrow and pick up two 400W 20K Radiums. I'll see if I can get some decent pics of the corals this afternoon. Maybe that will better illustrate the problems.<a href=showthread.php?s=&postid=15344972#post15344972 target=_blank>Originally posted</a> by mpoletti
... I personally would try two other bulbs to see what kind of response you would get. I do know that some of my corals when they were recieving too much light they would lose their coloration and begin to become pale.