The Planted Tank Forum - View Single Post - Ca:Mg ratio question
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post #6 of (permalink) Old 01-25-2013, 09:59 PM
Planted Tank Enthusiast
Join Date: Mar 2010
Location: Queens, NY
Posts: 817
PPM = mg/L

I use CaCl2 as the Calcium in my GH booster and it gets my Calcium levels to about 30ppm.
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