what is Alkalinity/buffering capacity - The Planted Tank Forum
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post #1 of 4 (permalink) Old 03-04-2003, 10:11 PM Thread Starter
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my aqualab 1 test strips say Alkalinity/buffering capacity for the middle pad ideal range 120-180ppm is this buffering capacity the KH?
why do they say alkalinity and what are you actualy measuring?
how do you convert ppm to the whole numbers ex. GH4, KH3...

thanks, Jeff :?
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post #2 of 4 (permalink) Old 03-04-2003, 10:38 PM
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To get German degrees of Kh which is what most of us here are familiar with, divide the ppm by 17.9 to get degrees of hardness. Same goes for converting Gh ppm figures..

Alkalinity and buffering capacity are Kh aka "carbonate hardness". Gh is the measure of dissolved minerals, primarily calcium and magnesium.

Your Aqualab test measures Kh. 120ppm=roughly 6.7 degrees Kh



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post #3 of 4 (permalink) Old 03-04-2003, 11:27 PM
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post #4 of 4 (permalink) Old 03-04-2003, 11:44 PM Thread Starter
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great thanks guys
short and sweet
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