The reason the rock is white is because there is no coraline growth there. It will colour up in time now that the light is on it. The coraline that is now concealed from light will probably die off, but it will not create a problem. As long as they corals are not on the bottom of a rock now, they should not suffer from the moving. They may sulk for a day or two though.
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I retired and got a fixed income but it's broke.
Ed
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50 gallon FOWLR, 10 gallon sump.
130 gallon reef, 20 gallon sump, 10 gallon refugium.
10 gallon quarantine.
60 gallon winter tank for pond fish.
300 gallon pond with waterfall.
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