Sale!
Glass Drop Checker, Suction Cup – ALA
Original price was: $2.73.$1.45Current price is: $1.45.
42 in stock
Description
Mount inside your aquarium to continuously monitor approximate CO2 levels by the color of the fluid in the bowl:
Green = normal
Blue = low CO2
Yellow = high CO2
- Glass provides a clean aesthetic
- Suction cup mounting will work with any aquarium with at least 1 flat side
- Optional: CO2 checker solution