CO2 Long-Term Test Correct

Depending on the CO2 content, the CO2 Special Indicator reacts with a color change of:

• Blue = too little CO2 above
• Green = CO2 optimal after
• Yellow = too much CO2.

The six-color comparison scale allows you to read the amount of CO2 in the aquarium directly in milligrams per liter. This makes it easy and safe to set the correct amount of CO2 to add.

And: With the CO2 long-term test Correct you can even monitor the pH value in the aquarium at the same time!

Particularly simple and accurate thanks to CO2 Special-Indicator

Conventional CO2 long-term tests are filled with a mixture of aquarium water and indicator. Disadvantages include: The acids present in all aquarium water (e.g. humic acids, nitrate, etc.) can distort the test result. The Dennerle CO2 long-term test Correct, on the other hand, works with a ready-to-use CO2 special indicator that is not mixed with aquarium water, but used pure.