Chihiros CO2 Drop Checker
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This product requires CO2 Drop Checker Solution to work. You can purchase CO2Art’s Drop Checker Solution HERE.

CO2 is one of the most important nutrients for aquarium plants. At the same time, too much CO2 can hurt other organisms of the aquarium. For this reason, long term monitoring of the CO2 levels in the aquarium is highly recommended.

  1. Pour CO2 solution into the Drop Checker
  2. Place Drop Checker in to the aquarium
  3. The color will change according to the concentration of dissolved CO2 in the aquarium water after roughly 2 hours.
  4. Green will indicate a proper CO2 value | yellow will indicate to much CO2 | and blue will show not enough CO2.

Please note that the required CO2 Drop Checker solution is sold separately and does not come with this glass CO2 Drop Checker.


Weight 0.059 lbs
Dimensions 4.7 × 3 × 11.4 cm


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