The Chihiros CO2 Indicator Set makes it simple to keep track of CO2 levels in your tank. The kit includes a sleek glass drop checker and indicator solution that changes colour depending on the CO2 concentration.
When the liquid is green, CO2 is usually in the ideal range for most planted aquariums. Blue indicates too little CO2, while yellow suggests too much. This allows you to fine-tune your CO2 dosing and give your plants optimal conditions.
