Noticed some of my sps have less coloring on backsides is this ok? Could it lead to something or should I move them. A couple are already glued down. I run a redsea90 on a 40 gallon tank.
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No if its from no light then thats perfectly normal But do you have any pictures?Can it cause any problems with it? Everything else looks good just wondering if the one side can affect rest of coral.

