Magnesium dosing

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jtvaughn

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Does anyone out there have to dose magnesium daily? My tanks magnesium stays at 1290-1350 even after a water change.
 
Those numbers are good though no need to dose magnesium daily. For me I like to bring my magnesium up to 1500ppm and allow it to gradually fall. Once it gets around 1300ppm I raise it over a span of 3-4 days back to 1500ppm + or -.
 
Even people who do dose magnesium daily likely do not need to. I doubt anyone has demand much more than about 2 ppm per day (which assumes a pretty high calcification rate).

So even in those cases, dosing one a week would cause a quite low swing in magnesium (say, 1330 ppm down to 1316 ppm over a week then back to 1330 ppm with dosing).
 

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