I'm just wondering how many long term users of leds are still happy with them? I've been using them since Sanjay spoke a few years back at the Feb. frag swap and have built some of what I consister the most awsome led fixtures around. All that being said I'm thinking of going back to MH, I just don't think corals hold there colors even with the full spectum units I've built and as far as coraline growth on rocks well forget it ! Now I know if your new to leds then they are the greatest thing since sliced bread but for the thode of you that have been using as long as me or longer just like to get your thoughts