Randy Holmes-Farley
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Thanks again for all you do for the hobby Randy. Just out of curiosity, part C has some trace elements also right? If that’s the case what’s the fallacy in dosing Mg using Part C to dose the general level of trace elements?
The issue is that a trace element supplement doses based on some expectation of consumption rates, and is mostly focused on fast depletion ions such as iron and manganese, while Part C is essentially salt mix without sodium chloride. Thus it is mostly magnesium, sulfate, and other high concentration ions in seawater, regardless of whether they deplete by consumption or not.