Annnnnnnnd now I know what the photon looks like over my tank I ended up buying two and I absolutely love them. I have them hung about 20" up running something similar to the SPS AB+ (same percentages as the radion version). I see zero color separation. I am currently running 40% royal blue, 40% cool blue, 40% violet, 10%white, 10%red and 10% green. This is basically the SPS AB+ profile at 40%. I LOVE the way the tank looks at 100%blues and 24%white/green/red so I hope to get there slowly. Here are some pictures: All channels 100% (this about about 500+ par most parts of the tank :-o) My favorite blend (100 on RB, blue, violet. 20ish on whites, reds, greens) This provides around 350 par everywhere in the tank IIRC. All blues 100%, 10% red and green, 0% white SPS pics taken under the SPS AB+ profile.