Dennerle Carbo Test indicator fluid

Dennerle Carbo Test indicator fluid

The CO2 diffuses out of the aquarium water into the test container and dissolves in the indicator liquid, Carbo Test Indicator.

Depending on the CO2 content, the indicator reacts with a color change:

• Blue = not enough CO2
• Green = CO2 level ideal
• Yellow = too much CO2

Content: 15 ml.