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Best Seller | Description: Aquarium Carbon Dioxide Glass Drop Checker with 15 ml Monitor Fluid. Different color of liquid represents different concentration of CO2. BLUE means that CO2 s concentration is too GREEN means it is normal. YELLOW means that CO2 s... more | FREE shipping go to store |
Aquarium CO2 Glass Drop Checker-Test Aquarium CO2 PH Detector Description: Condition:100% Brand New High Quality Materials:Borosilicate Glass glass drop checker suction cups included. Package include: 1 x glass drop checker more | FREE shipping go to store |
Aquatic Aquarium CO2 Glass Drop Checker PH Long Term Monitor Fish Bow Test Package Size: 60 * 55 * 10mm / 2.36 * 2.17 * 0.39in 1 * Suction Cup for Drop Checker Drop Checker Material: Glasses The relationship between CO2 and pH: When the drop checker is... more | FREE shipping go to store |
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