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A test to measure the content of solid carbon dioxide in water.
Test placed in the tank and comparing the color of the scale is read PH as well as the CO2 content in the water. This is an extremely convenient solution because we no longer perform at moments Ph tests to find out what level of CO2 is now.Thanks to its small size (3x4cm) is practically invisible in our tank.
3. The syringe
4. Scale color
set allows measurement for about 6-10 months.