I was (well, still am) under the impression that the reason LEDs were always minimizing the green and red spectrum was in an effort to reduce the "algae favorable" light available. When I ran "black box" LED fixtures several years ago, I didnt know any better and I ran my fixture directly on top of the tank at 80-100% blues and similar with the whites - and I had acros growing out of the water. I run T5s now, and I swear by the Giessemann Tropic bulb - I wasnt even aware that GE made a similar one!