Can CO2 titration drops go bad? - The Planted Tank Forum
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post #1 of 2 (permalink) Old 05-16-2007, 04:57 AM Thread Starter
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Can CO2 titration drops go bad?

I used these 10 month old drops to figure out the CO2 concentration and found it to be about 100 ppm...

ph - ~8.0
kh - ~6.7
gh - ~12.4

I was using diy CO2 for a day or two but I took it out a couple days ago because of these readings. Can this reading be correct or is it the drops?
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post #2 of 2 (permalink) Old 05-16-2007, 05:00 AM Thread Starter
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I should add that I just tested the water again so its been two days since the diy CO2 was in there.
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