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CRYSTAL-LINE CO2 LONG-TERM TEST
MINI
COMPLETE SET FOR CONTINUOUS, DIRECT CO2 MEASUREMENT IN MG/L
- Including pH measurement (2pcs.)
- In high-quality crystal glass
- For all aquaria
How the Crystal Line CO2 long-term test works
The CO2 diffuses out of the aquarium water into the test container and dissolves in the special CO2 indicator. The colouring of the indicator varies according to the CO2 content:
- Blue = not enough CO2
- Green = CO2 level ideal (approx. 20 mg/l)
- Yellow = too much CO2
In contrast to conventional CO2 tests, in which the indicator is mixed with aquarium water, the Crystal Line CO2 long-term test uses the ready-touse special indicator from DENNERLE. Advantages: The test indicates the CO2 content correctly at all times – independently of other acids in the aquarium water (e.g. humic acids). Measuring accuracy now also remains unaffected by any changes in carbonate hardness as a result of increases in the hardness of the water, evaporation or water changing.
Replacing the special CO2 indicator
In order to guarantee the quickest and most exact colour response at all times, we recommend filling the test container with fresh special CO2 indicator every 4 to 6 weeks. The used indicator can be disposed of by pouring it down the drain.
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