Use the Dymax CO2 Indicator Solution with the Crystal CO2 Indicator (sold separately) to test and monitor the saturated CO2 content in the water of a planted aquarium.
The Dymax CO2 Indicator Solution for the Dymax CO2 Drop Indicator Kit.
The Dymax CO2 Indicator Solution reacts to the concentration of CO2 within an aquarium and will change colors based on levels. Blue indicates a low CO2 concentration, green indicates an appropriate CO2 concentration, and yellow indicates a high CO2 concentration. The solution takes 1-2 hours to react and change color.
