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Re: CO2 & test kits
I have found the Aquarium Pharmeceuticals mid-range test solution to be
reasonably easy to read and (moderately) accurate with 0.2 steps.
PH FRESHWATER TEST KIT 28 AQ. PHARM.
READS LEVELS FROM 6-7.6 (SCALE 6.0, 6.2, 6.4, 6.6, 6.8, 7.0, 7.2, 7.4,
7.6). EACH KIT WILL DO 250 TESTS. INCLUDES TEST VIAL, LIQUID
BROMOTHYMOL BLUE REAGENT AND INSTRUCTIONS.
You can buy refill bottles of reagent, which save a little bit of $s.
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