Like DaveK said if theyt are fairly new to the tank maybe they need more time to adjust. I always start new corals at the bottom and slowly work them up so they can acclimate to new liughting
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Rico's Reef - Born 07/15/2006 - 75 gallon reef, 29 gallon sump/fuge
Polly's Ocean - Born 11/24/2007 - 10 gallon mini reef
Rico's Moneypit - Born???(coming soon) - 240 gallon mixed reef
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