FZONE Aquatic CO2 Glass Drop Checker PH Momitor for Aquarium Plant Fish Tank Test CO2 Kit

Brand: FZONEFeatures: Superior glass CO2 Drop Checker with the most accurate and reliable 4dKH solution in the market Quick and easy to setup. Simply fill the drop checker with the provided solution to half full, affix the checker to the glass, check back in one hour later for accurate reading Providing easy to read CO2 level. BLUE = Needs more CO2. GREEN = Sufficient CO2. YELLOW = Danger! Too much CO2. Constantly monitoring the CO2 level in the water column Complete kit for monitoring CO2 contents. Package include 15ml 4dKH/PH solution. 1 piece CO2 drop checker, 1 piece suction cup. Details: CO2 Drop Checkers are used for long-term monitoring of the CO2 levels in the aquarium. For optimal plant growth, it is important to know the CO2 level in the water column for the health of your fish and the plants. Over dozing of CO2 will lead to the death of fish; under dozing will stun the growth of your plants. A CO2 reagent is filled into the CO2 Drop Checker, then affixed the checker to the