The Planted Tank Forum - View Single Post - Reading KH as PPM
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post #1 of (permalink) Old 03-19-2007, 08:13 PM Thread Starter
Planted Tank Obsessed
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Reading KH as PPM

My Kh test kit shows my KH as a 4. Does this number have anything to do with a ppm reading? When people say their KH is 100 ppm, are they measuring this on anothe type of test kit?
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