LOL! About a month ago, I switched over to Coralife salt. I always heard great things about it. So far, I like it. With this tank, I attribute the colors to great lighting. These ATI powermodules are the truth when it come to achieving a great colors!.. I think MHs take the cake on growth speed and natural formation. IMO, I would have to use more midday bulbs, which have a yellow hue to them in order to rival the growth of MHs. Also, low nutrients via carbon dosing and flow. Trust me, you would not want my waste water :lol: