SethTheWineGuy, I'm sorry to hear of your problems, especially if my thread on the AIs played any part.
I personally think this has less to do with the PAR and more to do with the corals adjusting to the light spectrum emitted by LED's.Most early adopters processed to bleach virtually everything in their tanks, in my case several times prior purchasing a PAR meter.
What power settings do you use and what height are your AI's mounted above the tank? You should be able to gain far more than 12" coverage with more than needed PAR at 25" depth by simply raising the LEDs. You mentioned 300 PAR on the sand bed - That's a lot of PAR especially when you consider your PAR meter is likely underestimated the blue light by upwards of 20%.
To date, (aside from the early bleachings) my greatest challenge with the AIs has been developing optimal coloration. I added 12 watts of 403nm and Magenta stunner strips which provided a marked improvement.
My Verdict is; AI is INNOCENT of all CHARGES.:hammer:
I have softies, leathers and monti's in my tank and all seems good. Getting excellent growth on my monti's in the short time I've had them.
Sanjay's testing shows the same round spread.
How?
They recommended something that wasn't nearly enough. It has been common practice on the boards to say that AIs can only really cover a 12" area. Some use less and do fine but they can in NO WAY cover a 24x24 area properly. AIs are just too spotlight-y for good spread.
This has been brought up about other LED lights, and if he doesn't like them just sell them, case closed
I read so much I can't keep it all straight but I think Sanjay has transitioned at least one of the tanks under his care to LED.
Maybe someone can find a link?