Enjoy free delivery above $30 • Enter discount code FAB05 for 5% off orders above $40.

[Chihiros] CO2 Indicator Glass
[Chihiros] CO2 Indicator Glass

[Chihiros] CO2 Indicator Glass

Regular price
Sold out
Sale price
Tax included.
Quantity must be 1 or more

The Simple and Safe Method of CO2 Indication.

Monitor your CO2 concentration in a planted tank with the help of a glass CO2 indicator. Our set includes one CO2 indicator glass with a suction cup only. 

• Blue – insufficient CO2

• Green – sufficient CO2

• Yellow – too much CO2

How to Use

  • Hold the indicator port straight up.
  • Drip into the testing liquid, to reach about 1/2 of the glass sphere.
  • Rotate the indicator, let testing liquid flows in to the sphere.
  • Put the indicator vertically into the water and fix it on the wall of the tank.
  • This product is used to detect the concentration of CO2 in water (need to add testing liquid).
  • Do not place the indicator above the CO2 diffuser outlet.


H4.2cm x L4.6cm