Dropchecker
The 1st rule of the CO2 Club: Bubble counting is not a measuring method!
The 2nd rule of the CO2 Club: Bubble counting is not a measuring method!
The 3rd rule of the CO2 Club: You need a dropchecker.
Our dropchecker work with the colour change from blue to green to yellow. The simple and safe way to always keep an eye on the CO2 content in the water.