Very good test for initial determination

Contrary to the experience of others here I find this test just super. I check every 2-3 days the water of my aquarium with this test, he was far more reliable. I use this test as a kind of "Erstindikator", a value is out of order, I measure with my droplet test to specifically, the values ​​of the test strips have been always confirmed here. By reading the colors I have no problems, but you can keep the test strips directly to the color gamut of the can, which is really not difficult, it is also displayed accurately, from what color you should take measures to improve water quality. The colors blur only if you have not previously thrown off the water from the test strip, I will buy the test in any case repeatedly, since it is also cheaper than my Tröpchentest!