And thank you brassmonky for those PAR readings and specs. It's interesting to see the difference between optics and no optics.
I'm also surprised that you can get such high numbers, without optics, over a 120 with only 74 LEDs. Proves how strong LEDs really are. Thanks for the information, it will benefit many people I'm sure.
And not a shabby tank in any respect either! Very clean, elegant, and beautiful