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Jeremy8404
There is a test and calibration liquid in one preparation. With this liquid, you can determine the accuracy of the tests we use. What does this test represent? I tested the tests from Tropic Marin for KH, Ca, and Mg. Instead of aquarium water, pour 5 ml of the liquid from the bottle (in this case, for Tropic Marin) and perform the usual test. If the test results match the parameters indicated on the test liquid, then the test is accurate. Test results: The tests from Tropic Marin can be considered accurate, as all parameters matched those of the test liquid. The quality of the photo is poor, so I will indicate the calibration: Calcium 422, Magnesium 1314, Potassium 408, Salinity 35, KH 6.5.