Interesting...so far most people are either at 12 hours or half that at 6 hours.
I would have never even tried 6 hours until I read the RC thread with people raving about how well their corals responded and the thoughts on photo-inhibition. At least for sps, they can get 'tired' if you give them too much light and not enough 'repair' time from what I understand. Someone likened it to the gym...Your muscles grow 'overnight' as they repair themselves as do sps and like a work out, you can really overdo it. Especially since our lights are stuck at high noon for all these hours. It would be great to have dimable halides and be able to keep my lights on 12 hours a day, fading up to full and then back down over a long period of time. Just don't have the money for that right now.
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