I have an API Reef Master test kit and was wondering how other people read the results. For some of the tests like the KH test, it says you can look down the tube to determine the color. However, looking down the tube usually has a hugher reading color vs looking at it from the side.
How do yall look at your results, from the top or from the side?
How do yall look at your results, from the top or from the side?



