Trevor, I have done the blackout a couple times. Never hurt corals none. I was using it to rid Cyano. Was allways doing 2 days no lights, but not covering tank. Cyano back in a week. Last time, 2 days covered with thick towel, and 3rd day, no lights. Then, 6 rd actinic, 3 hrs daylight on 4th day, 5th, resume light schedual. And my sand was pearly white, cyano and hair was gone. I only had a small patch of hair, never even noticed it was gone till I got that Xenia from you. LOL Which, BTW is thriving nicely.
I have acctually read of people who do 2-3 days blackout once a month to keep thinks white and fresh looking, with no ill effects. i mean, on the real reaf, they have extremly cloudy periods too, dont they?
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Dan Pesonen
Umm, a tank or 5
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05-30-2008, 07:40 AM
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