07-17-2009, 05:47 PM
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Member
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Join Date: May 2007
Location: Mississauga
Posts: 1,319
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+1.
Quote:
Originally Posted by untamed
you need to understand and control calcium and alkalinity before you start being concerned with magnesium. If you are going to need to supplement anything, it will be ca and alk to begin with.
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I'm out. 
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