It can be produced through a biological fermentation process (bio-CO2 systems) or conveniently supplied by pressurised gas cylinders.
The CO2 gas is expelled during the second test and this difference is taken into account by the subtraction.ĬO2, also referred to as carbon dioxide, is a colourless and odourless gas.
Simply carry out the test once more with an aerated sample and then subtract the difference between the two tests. With this test you also have the opportunity to exclude other acidic effects from the test results. Here you add an indicator liquid into a sample of the aquarium water and you count the drops until a stable pink colouration appears. A quick and very precise method to determine the CO2 content offers the JBL CO2 Direct Test Set. The CO2 permanent tests always need a few hours before the CO2 content in the water is indicated. This way you can easily and quickly read on a scale at any time how much CO2 is available in the water. JBL offers you a practical JBL CO2-pH Permanent Test, which permanently displays the CO2 content of your aquarium water. Now you can see whether the CO2 content of your water is not sufficient and you need to increase it for the perfect plant growth. The green area in the table indicates what would be the ideal CO2 level for thriving plant growth or the right level for sensitive plants. If you know the carbonate hardness of your water you can read in the table shown, how much CO2 is present in your aquarium water.
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