The DYMAX Crystal CO2 Indicator Solution is every aquarium or planted tank’s essential tool. Keep the CO2 levels in your tank consistent by checking it regularly. This kit contains a 10ml CO2 indicator solution.
Guide:
- Make sure your test kit is clean.
- Drop 5 drops of CO2 indicator into the glass checker and make sure it is stored in the bulbous side of the valve with the opening facing down.
- Attach this to the side of your tank, completely submerged in the tank water and wait for up to 2 hours.