I am running 250's and I have the Acro about 10" from the surface. Do you think I need more light? PO4 is undetectable. I am running RO and Purigen, between the two I manage to keep it in check. I am working on the Nitrates, I had a couple of dead spots in my tank so I changed the flow and hopefully that will make a difference. Mu other SPS are all doing fine.
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