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For monitoring the proper dosage of CO2. Depending on aquatic plants and their growth conditions, the amount of CO2 required changes dramatically. Drop Checker is an original glassware unit, designed to indicate the CO2 amount diluted within the water with the color change of the pH reagent inside, in order to understand the proper amoun
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Perfect Drop Checker
Excellent quality 5/5
S
Scott · August 18, 2025
Looks great!
Love the size! The other drop checkers I have are massive compared to this.