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ADA CO2 Drop Checker
ADA CO2 Drop Checker ADA CO2 Drop Checker ADA CO2 Drop Checker ADA CO2 Drop Checker ADA CO2 Drop Checker

ADA CO2 Drop Checker

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With this ADA CO2 Drop Checker it is very easy to assess the CO2 content of the aquarium water. By filling the glassware with the special liquid and hanging it against the glass pane, you can continuously check whether there is sufficient CO2 in the aquarium.

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ADA CO2 Drop Checker measures the CO2 content

Aquarium plants need CO2 to grow. The ADA CO2 Drop Checker is a continuous CO2 test to determine the CO2 content in the aquarium water. The liquid in the Drop Checker changes color when the CO2 content changes. This makes it much easier to determine what amount of CO2 should be added to the aquarium.

The ADA CO2 Drop Checker has an elegant shape and is a handy product to adjust the amount of CO2 fertilization!

Features ADA CO2 Drop Checker


5ml pH liquid / reagent (approx. 100 fillings)
1x Suction cup
1x dosing syringe
pH color chart
Liquid compartment contents: approx. 2 ml

Allow 1 drop of pH liquid to sink down into the bulb through the opening. With the Drop Checker upside down, the bulb can be filled up to half with aquarium water. Carefully turn the Drop Checker over and prevent liquid from flowing back. The CO2 Drop Checker can now be placed in the aquarium. To obtain a good indication, the CO2 Drop Checker is preferably not placed above a CO2 diffuser or other technology.


Data sheet

CO2 Drop Checker
ADA (Aqua Design Amano)
5ml pH of liquid / reagent, Suction cup, doseerspuitje, pH color chart


CO2 Drop Checker (manual.pdf)

Download (2.34MB)