Hey Brian,
Please, please forgive me if I disagree. I'm not wanting to step on any toes, but the absolute fact is that 6 T5 bulbs if placed right on the surface are producing 1000 to 1500 PAR.
Mother nature provides more light than that on reefs at midday and I personally have run 1000 watt MH that did more than 2000 PAR at the surface. There is NO WAY possible that 6 T5s are providing too much light for the corals that were shown in the pictures at the beginning of the thread. My tank has 16 T5s plus 4 150 watt MH's that run 100% power for 10 hours per day. My daughters 38 gallon Innovative Marine tank has 6 T5s that run 100% 12 hours a day and a total of 16 hours illumination.
And here's my tank under 2500 watts of lighting a while back.
These corals are not pale from too much light. That is called bleaching and results in death very quickly where as the corals shown are languishing a slow death.
Again, please, please, please believe me when I say I am not wanting to be mean, but just disagreeing in a very collegiate and fellow hobbyist discussion way!
Joe