As anticipated, the 156 Watts of T5s and 30 Watts of LEDs are proving to be more than enough PAR for this tank. I've raised the lights a bit and cut back the photo-period on the ReefBrite LEDS. I've loaned out my PAR meter, but will need to update PAR measurements once I get it back. In addition to the 50%/50% White/Royal Blue emitters, I'm currently running 3 ATI Blue+ and one KZ Fiji Purple. I ordered a KZ New Gen 14000K and 3 KZ Super Blues to play with to see what if any difference is noted.
The Acans and chalices in the lower levels are adjusting nicely. So far CA and Alk are holding steady at 420ppm/9.5dKH with just the daily water changes and Kalk dosing. I'm going to bump the temp up a bit to a range of 78~79 to increase evaporation and Kalk dosing with the hopes of delaying having to dose 2-part as long as possible.
I've ordered a micro ball valve to reduce the flow rate of ATO/Kalk from the Osmolator. This should "smooth out" the pH spikes and provide more stable water parameters.