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More Accurate PH test
Hi.
Does anyone have a product which is more accurate at measuring PH?
I currently use Tetra test but it only works in increments of 0.5
Also the color is sometimes hard to tell difference between any two different colors so hard to get exact measure.
The problem is if my PH was 7 my CO2 ppm would be over 25 but if it was 7.5 then my CO2 would be only 13.
I want a more accurate reading so I can optimise my CO2 better.
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