Elliott congratulations. I have a much smaller tank (75G) lit with 2 AI SOL Blues. While some SPS do well others bleach and die. Would you mind sharing your settings and any tips for operating these lights? I've toyed with upgrading to Hydra52's because of the full spectrum lighting but your tank renews my hope that these lights will work with SPS. Thanks for your help.
thanks crs751
I can assure you your Ai sol blues will work just fine with SPS coral, my intensity settings are 40% white and 85% blue, I run a 10 hr photo period that includes 30 minutes ramping up and down on both ends. Par measurements average 100-130 on the sand bed (not including 15% upward adjustment for LEDs). Light fixtures are 10" above the water line, tank is 3 ft deep.
I believe the difficulties most people have with LEDs, especially bleaching, are due to excessive intensities, in part due to the efficient focal properties of the lenses.
Each time I have attempted to increase intensities my corals have suffered, so I've stopped trying. I believe the blue wavelengths are most important.