Specially designed to suit every need.
Made of glass, for maximum reliability.
Supplied with 15ml Drop Checker Solution and suction cup
No mixing or preparation required.
This is all you need to start monitoring CO2 levels in your aquarium.
Drop Checker is an original glassware product designed to indicate the CO2 amount diluted in the aquarium water with the color change of the pH reagent inside, to understand the correct amount of CO2 supply.
Drop Checker Size: