Can anyone post the Nutrafin GH test instructions? - The Planted Tank Forum
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post #1 of 2 (permalink) Old 07-22-2011, 05:32 AM Thread Starter
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Can anyone post the Nutrafin GH test instructions?

I don't have the instructions, does anyone have it and can they please post em?

Thank you so much.
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post #2 of 2 (permalink) Old 07-22-2011, 06:48 AM
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Really old post, but still works:

Originally Posted by Joetee View Post
I bought a Nutrafin KH/GH test kit and I have a few questions on reading the instructions.
But first here is my test results:
GH - it took 7 drops to change the color. 7 x 20 = 140 ppm I presume.
KH - it took 5 drops to change the color. 5 x 10 = 50 ppm I presume.
Now the instructions say:
" Multiply GH or KH (mg/L CaC03) by 0.056 = dH degrees or /ou/o/ gH degrees".

Now am I correct to say that 140 ppm x 0.056 = 7.84 gH degrees?
and 50 ppm x 0.056 = 2.8 dH degrees?

Also, If this is correct, are these readings good or should I be adding something to raise the 2.8 dH. I believe the 7.84 gH is just fine right?


Basically, you add one drop at a time until it changes from blue to yellow.

Hope that helps.

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