What is you magnesium at, correct or make sure mg is at the proper levels then worry about calcium, I was adding tons of mg ca and alk to my tank over the last little while and it was hard to get everything up. Be patient and you can drip calcium in daily with ro as your top off. But be sure the mg is at 1350-1400 and it should be easier.
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Always looking for the next best coral...
90g starphire cube/400mhRadium20k/2 XHO/2x27w UV/2x39w T5/ 3 Trulumen led strips
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