Dennis - Did you ever see a decline using the Radions because of the 660nm red cree? I'm pretty sure if my knowledge of physics and wavelength is correct if you have MORE blue than red it will "drown" out the red receivers in the corals basically blocking it with the blue. I've heard a lot of people who have a horrible overbalance on red and it kills everything. The newest PAR38 has two cree reds and I think that's too much.