AQUAYER Indicator is a solution of a special dye with KH 4° in one bottle which should not be mixed with aquarium water. All you need - is pour the right amount of the indicator in a long-term test.
Depending on concentration of CO2 indicator color changes:
- yellow = CO2 content is too high.
- green = optimal concentration of CO2 in the water.
- blue = too little CO2.
Fill AQUAYER Drop Checker with required volume (1-2 mL) of AQUAYER Indicator. Refill Drop Checker with the Indicator every month.
Storage:
2 years at temperature below 30 °С