CENPEK CO2 Drop Checker Glass Aquarium Monitor CO2 Indicator for Planted Fish Tank

CO2 drop checker made of high quality glass, use to measure CO2 levels at a glance(NO including Indicator solution). Apply to fish tank, aquarium, especially aquatic plants, tropical fish to watch and cultivate for fish tank. Monitor to be installed below the water surface about 10cm, it is recommended not to install too far from the refiner. You need to be very careful about the health of your plants and carbon dioxide is one of their major requirements. This CO2 monitor is one of the most vital items of your aquarium kit that helps you to keep a constant check on CO2 levels in the water.