For some reason, I cannot seem to achieve and maintain proper calcium and alk numbers in my tank. This morning I did a 15% water change, waited about 20 mins and checked my calcium and alk... they came in at 360ppm and 7 respectively. I realize this isn't grossly low, but I have also been dosing Brightwell Reef Code A Calcium and Alkalinity Booster as directed by manufacturer. So I ask, what do I need to be doing to achieve proper levels.... which product is best? Thanks for the input!
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