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post #34 of (permalink) Old 10-17-2012, 11:31 PM Thread Starter
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cantsay39's Avatar
Join Date: Jun 2011
Location: Elmhurst, Nyc
Posts: 864
actually if you look at the chart of ppm~ that is the gh/kh which i had listed... just make the numbers more accurately.. we are human we look at the big numbers which is just the ppm, but aquarium wise (gh*17.9) + (kh*17.9)= ppm
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