GH tester doesnt seem to be working correctly. - The Planted Tank Forum
 
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post #1 of 3 (permalink) Old 06-10-2006, 11:21 PM Thread Starter
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GH tester doesnt seem to be working correctly.

PH: 7.2
KH: 4
GH: ??? - inconclusive

I've never had a real problem with my Ph, Kh ect ect. However, reciently I have been trying to raise guppies and it seems as though soft water may be a problem.

On with the GH tester. The kit says that the water should turn orange on the first drop of testing fluid and then you need to count the drops untill it turns green (the test is very similar to KH as you probably already know) But instead of turning orange on the first drop it turns pale yellow, and after the 12th drop still didn't turn green.

Is it possible for my GH to be sky high (>12) and my Kh to be low? Or is somthing else wrong?


thanks!
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post #2 of 3 (permalink) Old 06-10-2006, 11:27 PM
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How old is the test kit? Mine went belly up about 14 months after opening it. Most of the manufacturers say they are good for about a year after opening. But, many years of shelf life unopened.
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post #3 of 3 (permalink) Old 06-11-2006, 12:57 AM Thread Starter
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Quote:
Originally Posted by mjproost
How old is the test kit? Mine went belly up about 14 months after opening it. Most of the manufacturers say they are good for about a year after opening. But, many years of shelf life unopened.
Um... I'm pretty sure that its more then 14 months... he he he more like 84 months

Ah... so you're saying crusties on the droppers arn't a good sign?

Can I trust the other readings you think? They seem to be fairly accurate. I am going to do a large water change (there is only 2 gups in the tank) and see if some rocks I had in there weren't leaking calcium or somthing. A while ago I did actually add calcium carbonate to the water as a small experiment with some plants --- maybe that would cause it to be extrodinarily high still?
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