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Re: Alkalinity and Phosphates

Roger Miller wrote:
"Given so many opportunities I expect that quite a few aquariums will
organic acids that might interfere with the alkalinity titration.  If the
concentrations are high enough, then interference will happen."

Thanks for the follow up Roger. You listed quite a few possible sources of
organic interference. Would a Tannin/Lignin test be of any help in
signalling when such levels might cause the Alkalinity test to be "off"?


James Purchase