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Glass Drop Checker, Hang On - ALA
$17.02
Sale price
$17.02
Regular price
$23.00
Hang on the rim of 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
- U-shaped to accommodate any size aquarium
- Optional: CO2 checker solution