Use a titration based test kit (i.e., add drops until you get a colour change) instead of one with a colour comparison chart ("is this shade of green more like this yellow-green or more like that green-yellow?"). Seachem and Salifert are both titration based for alk.
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-- Tony
My next hobby will be flooding my basement while repeatedly banging my head against a brick wall and tearing up $100 bills. Whee!
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