Tips for reading test kits

[Fishowner24]

I have one of the test tubes. I can't tell though what it is because the 2 different levels of something look the almost the exact same. Does that make sense? I need help determining what level of for example nitrites it is on.

 

[Dunk2]

I have one of the test tubes. I can't tell though what it is because the 2 different levels of something look the almost the exact same. Does that make sense? I need help determining what level of for example nitrites it is on.

API test kit? Post a picture. A lot of folks on here (excluding me) are good at reading them.

 

[Gscribble]

I have a hard time deciphering the api tests too. I wish there was a reliable affordable easier option.