White around zoa

Lovac

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Anybody have any idea why this is growing around my zoa?
 

Cell

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Sponge, I think. I'd just remove with a tweezers.
 

Looking for the spotlight: Do your fish notice the lighting in your reef tank?

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  • My fish seem to occasionally respond to the lighting in my tank.

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  • My fish seem to rarely respond to the lighting in my tank.

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  • My fish seem to never respond to the lighting in my tank.

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  • I don’t pay enough attention to my fish to notice if they respond to the lighting.

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