AquaLabs Drop Checker and Solution

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Description: The AquaLabs CO2 Checker Kit includes a glass drop checker and indicator solution. It can be used in aquariums with CO2 injection to determine approximate CO2 levels. Instructions: Add 15 drops to the glass checker Install checker in the aquarium and monitor the colour Blue = Low CO2, Green = Medium CO2, Yellow = High CO2 Replace solution once every 30 days Includes: Drop Checker Suction Cup Drop Checker Solution Video: Show more