Dasaphrota, I have as of yet had no problem keeping sps alive and growing under p.c. light. I have a large turqouise acropora that is growing wonderfully, A piece of green acro that started as a tiny nub that is now 3 inchs high and has side branches all over it. I have a hydonophora that has done great for me so far, I have a bali slimer that started at 3 inchs and now is over 5 and has grown one good side branch and looks to be growing more. I have BT anemone that are now in a customers tank grown in pc light for 3 years now. I will say that the color on sps under mh is more brillant. However I have seen many tanks with metal halide that the person growing the coral could not keep it alive for anything. Now I do have a differnt P.C. light than most of the ones you see. It has 4x 96 watt vs the normal one that has 4x65 watt. I am of the opinion (my Opinion LOL) that the corals if given proper water conditions and cared for they want to live and will. I am watching my coral that I bought and fraged, as a brown ugly acro turn dark green, and am hoping for the little purple tips I saw when I held it close under a 20k MH bulb at the LFS. It is doing this under pc light. I am going to buy a 2x 250 wt mh with 2x 110 wt vho light system. Just because I want it. I grew sps corals in a 10 gal under 1x96 wt with a emperor 280 filter, and a prizam skimmer, with live rock and live sand. And that evil calupera racemosa. LOL. Just so you know I am very hard headed, and want to try to do thing people say you cant do, just to do it. LOL. I am getting better though. Hth in some way. Steve
i don't even know if it does reduce flow. he could have so much flow in his tank that inside the tray may have some interesting swirling flow patterns from bouncing off the inside walls.
