Dennerle CO2 Long-term Test Correct

The Correct + PH long-term CO2 test is used for permanent CO2 and pH measurement in the aquarium

With the CO2 long-term test Correct + PH you can easily and permanently measure the optimal CO2 content in your aquarium. The indicator liquid changes colour and can be easily compared with the colour comparison scale. This then shows you the CO2 content in mg / l, as well as the pH value. Up to 6 different values can be measured. In this way, you can adjust the CO2 supply optimally and precisely. The difference to conventional long-term tests: these are filled with a mixture of aquarium water and indicator. The disadvantage of this is that the acids present in every aquarium, such as humic acids, nitrates, can falsify the test result. In addition, they require a prior measurement of the carbonate hardness, since they actually only measure the pH. The Dennerle CO2 long-term test correct works with a ready-to-use CO2 special indicator solution that is not mixed but used pure. Therefore, no additional measurement or adjustment of the KH is necessary, the comparison scale is sufficient, even changes in the carbonate hardness do not matter. The long-term test Correct + pH allows a direct determination of the CO2 content in milligrams per litre - without you having to do additional water measurements or laboriously converting table values. And all this even with low carbonate hardness!

Note: Incidentally, the CO2 long-term test correct is not suitable for measuring the content of liquid carbon fertilisers in aquarium water, e.g. B. the Dennerle Carbo Booster Max or Carbo Elixier Bio, as these do not contain CO2, i.e. carbon dioxide, but other carbon compounds.

Our expert Oliver Knott recommends:

With the CO2 long-term test Correct + PH you have professional equipment in your hands that give you reliable results and also works completely independently!