Drop Checker

Depending on the species of aquatic plants you keep, the growth conditions and the water hardness, the amount of CO2 you will need to supply may vary greatly.

The Drop Checker is a monitoring device made of glass that shows you the amount of CO2 that is dissolved in the water at all times. The pH reagent contained inside will change color if the amount of CO2 changes. By comparison with a colour chart you can easily find out how much CO2 you need to add to your aquarium.

1 bottle of pH reagent included (5 ml)