hdlorider93
Aquarium Advice Apprentice
- Joined
- Sep 16, 2013
- Messages
- 19
Question.....I have been testing my ammonia, nitrites, and nitrates for some time now using the API Master test kit. I have recently noticed that I take my reading at the 5 minute mark like the user manual states. However if you wait a little longer (few minutes) the color in the tubes keep changing. So is the accurate reading the 5 minute mark or when the color stops changing? Has anyone else noticed this issue?