CO2 Glass Drop Checker (Hang-On Type)

Glass Hang-On Drop Checker for Planted Aquariums

CO2 Drop Checkers are small enough to appear unobtrusive, yet large enough to provide a clear and accurate CO2 reading.

CO2 Drop Checkers are used for long-term monitoring of the CO2 levels in the aquarium. A CO2 reagent is filled into those CO2 Drop Checkers and will change the colour according to the amount of dissolved CO2 in the aquarium water.

Green will indicate a proper CO2 value, yellow will indicate to much CO2 and blue will show not enough CO2.

It is hand-crafted using only the highest quality, laboratory-grade, borosilicate glass for maximum strength, durability, and visual clarity.
Fast response time.
Use to measure CO2 levels at-a-glance.

PLEASE NOTE: 
**Does not include 4 DKH solution** CO2 Indicator Solution Needs to Be Purchased Separately