Test Kit Problems API KH - The Planted Tank Forum
 
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post #1 of 5 (permalink) Old 03-14-2014, 01:08 AM Thread Starter
Planted Tank Obsessed
 
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Test Kit Problems API KH

I've got a 2017 bottle here but, not sure if It's reading properly ...
Planted Tank CO2 injected and High Lights. I ran a test here recently. Blue on the first
drop and then green on the second ( very light colored) and then on the 3rd drop it went
to a YELLOW . I would think it would just get a little darker green ?? or is this common?
This was not direct out of the Tank which is reading 10 ppm. I usually have water sitting in my Rain barrels for a min. of 24-36 hrs prior to WC's with Circulation, Temp adjustment and API Tap Water Conditioner. Wonder if this Kit is bad or not ??
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post #2 of 5 (permalink) Old 03-14-2014, 03:19 AM
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It's fine. The shift is supposed to be from blue to yellow. the fact that you had a green result is indicating maybe an in-betweeny reading. I'd take that as 1.5 to 2 dH.
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post #3 of 5 (permalink) Old 03-14-2014, 04:58 AM Thread Starter
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Aaahh jeez, don't know what I was thinking. I usually don't test much and go by visuals.
I'm reading though 10 DKH on this tank. with a ph of around 6.8 .... GH around 8 ....
New Tank Jan. 20th start up. ADA soil... small 14 gallon cube..
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post #4 of 5 (permalink) Old 03-16-2014, 07:08 AM
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So there is something adding KH to the tank.
If the source water is 1-2 dKH, and the tank is 10dKH.

Wonder what that is?

And the pH is really low, for such a high KH.

I would re-test the tank, see if that one (10 degrees) is a mistake.
ADA products usually remove the carbonates, leaving the test to read zero, and the pH can then be controlled by other things in the water.
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post #5 of 5 (permalink) Old 03-16-2014, 07:42 AM Thread Starter
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I've got a few Seiryu Stones in there as well. I do know it takes a bit for the tank to balance out with this particular soil. I also have Power sand Special S in there as well .....
Small branch of Manzanita also. Tank is 2 months now......
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