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Re: [APD] Estimative Index for CO2 Dosing - Bah!

gbooth at frii_com wrote:
> It appears to me that folks have forgotten that you can actually buy test
> kits that are resonably accurate <gasp>.

I was under the impression that these tests relied on the KH/CO2 
relationship for their accuracy. I believe they use NaOH to titrate the 
carbonic acid, but I might be forgetting things too.

Jerry Baker
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Aquatic-Plants at actwin_com