Drop Checker Ph Indicator - The Planted Tank Forum
 
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post #1 of 3 (permalink) Old 01-20-2010, 10:50 PM Thread Starter
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Drop Checker Ph Indicator

I am using 4dkh solution, how long does the ph indicator last? Could i use any ph solution such as API low range? Its prolly a year or 2 old from when i purchased off aquabid I believe.
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post #2 of 3 (permalink) Old 01-21-2010, 02:39 AM
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i had mine for about 1 year.
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post #3 of 3 (permalink) Old 01-21-2010, 02:55 AM
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I used some of the same test kits for years. As longs as you close the lids tight, they should last a while. Calibrate them, of course, depending on what you are using them for. Well, actually, having said that, I guess all test kits should be calibrated. To be honest, I have never calibrated a PH test kit though.

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