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Re: PH test kit
Matts asked <<What test kits are most using for Ph? >>
LaMotte's narrow-range pH kits are excellent:
http://www.lamotte.com/WEB-SITE/SIDEFRAM/IND-KITS/PH-KITS.HTM You can
resolve the pH to 0.1 unit or even 0.05 with a good eye. Try to choose a
kit where your typical reading is near the midpoint of the references.
Test-Kit Primer at http://www.brainyday.com/jared/aquarium/testkits.htm