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  1. General Reef Discussion
    Since addding a Ca reactor a few months ago my Ca/alk has been very stable. Now thw weird thing is my Alk is droping but not my Ca. What is causing this? I thought Alk/Ca worked together. 20meg/l of Ca for every 1meg/l of Alk.... So how can by Alk be droping and not the Ca?
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