IAFVKAI Glass CO2 Drop Checker Aquarium Hang On CO2 Monitor CO2 Detector for Aquarium Planted Tank bee07 9" in Diameter of bottom

9" in Diameter of bottom disc fits weigtht plate with 1" hole diameter

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IAFVKAI Glass CO2 Drop Checker Aquarium Hang On CO2 Monitor CO2 Detector for Aquarium Planted Tank bee07 9" in Diameter of bottomIAFVKAI Glass CO2 Drop Checker Aquarium Hang On CO2 Monitor CO2 Detector for Aquarium Planted Tank Product Information Package included: 1x aquarium CO2 checker(no including indicating solution), 1 x small dropper. Made of high quality glass, use to measure CO2 levels at a glance Indicator color chance shows results: The CO2 indicator (C02 indicator reagent not included) color is blue, when it is blue represented CO2 insufficient; Turns green, the