Quick general hardness question - The Planted Tank Forum
 
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post #1 of 4 (permalink) Old 12-06-2014, 01:35 AM Thread Starter
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Quick general hardness question

i did the api gh test today and it took 100 drops and still didn't change to green do I need to take action immediately ? I did a 20% water change today and I have co2 pressurized
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post #2 of 4 (permalink) Old 12-06-2014, 03:59 AM
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What's going on in the tank? Is there a specific problem with the plants/animals?

If there isn't a glaring problem, I'd assume the test kit is bad, or that you've got things that more or less like it that way.

More details would help!
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post #3 of 4 (permalink) Old 12-06-2014, 05:49 AM
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My GH test went bad. I put in drops until the tube was full and no color change. I was curious and the solution was obviously bad, I didn't really think the water was that hard. Turns out the GH isn't high enough and at water changes I add some magnesium and calcium to the tank!

Check the source water's quality report. Maybe you can find out the GH there at least until you can get another GH test.


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post #4 of 4 (permalink) Old 12-06-2014, 01:06 PM
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Ditto: Old test reagents. The GH test fails by failing to change color.

Confirm:
Get some RO or distilled water. Ought to change color on the first drop.
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