Ok, I have a 72G bowfront with 2 x 150 MH
and 2 x 96W PC
actinic lighting. 130lbs of LR
refugium with chaeto. The coral is about halfway up in the tank on the right side. The stalk that is not opening is the one furthest to the right, 6-7 inches from the right glass, but still gets a decent amount of light. It is in medium flow and not near any other corals in the tank.
Calc : 450
Let me know what you think.