Made of high quality glass
3cm diameter, unique round form, very unobtrusive
Use to measure CO2 levels at a glance
Package included: 1x glass ball drop checker, 1x suction cups
Please note that CO2 indicator solution is NOT included
Maintaining the appropriate CO2 level is critical in a planted aquarium. Too much CO2 may harm your fish, whereas too little CO2 decreases plant growth and allows algae to take over. The CO2 indicator makes it easy for you to know the CO2 level inside the aquarium by comparing the color of the reagent.
Glass CO2 Drop Checker for Aquarium Planted Tank - B01MUDDMVP