API GH help

Once it turns light green that's your reading it should look sort of like watered down mtn dew


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Ya ok just make make sure because I add more drops and it pretty much stayed very very light green lols. So I'm guessing my GH is 2 since 2 drops turned it green?

Hey we have the same amounts of post

Yeah 2 drops is 2. However it's not the most accurate test consider it a give or take reading


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Also look down from the top through the vial over a white background, it makes it easier to see that it is green.

The first drop that changes it is usually the one you count.

I have done some tests where the first drop that makes any change (drop #4) really is not much. Not yet green, just 'not the same yellow'. Then next drop (#5) makes an obvious change to green.
I would call that a high 4 degrees, maybe between 4.5-5 degrees.

To convert degrees to ppm multiply by 17.9.

First drop I get no change second drop I get green already and yes I put it behind a white background

I will do another test tonight thanks all.

I found the API GH test kit was very life limited. I once tried 2 of them, one brand new, without either one working well. After trying a couple of other brands I found one that worked. Apparently the GH test chemicals aren't all that stable.

Hoppy said:

I found the API GH test kit was very life limited. I once tried 2 of them, one brand new, without either one working well. After trying a couple of other brands I found one that worked. Apparently the GH test chemicals aren't all that stable.

Click to expand...

O.O Hoppy, do you have a recommendation on a more reliable brand?

The drop #2 that made the distinct change is what you count. 2 degrees.

I also had the GH test fail earlier than any others.
It has also failed on an old package of test strips that I picked up for free. The other tabs change color, and agree with the reagent/test tube tests.

Hoppy said:

I found the API GH test kit was very life limited. I once tried 2 of them, one brand new, without either one working well. After trying a couple of other brands I found one that worked. Apparently the GH test chemicals aren't all that stable.

Click to expand...

+1 hoppy what works?


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