2x CO2 Drop Carbon Dioxide Checker Planted Aquarium Glass Ph Indicator

Description

Set of 2
Made of high quality glass
3cm diameter, unique round form, very unobtrusive
Use to measure CO2 levels at a glance
Package includes: 2x glass ball drop checker, 2x suction cup
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