Wow, I never knew color chart tests could be that unreliable…. Hmmm, Hanna checkers could be the way to go instead and just keep the other tests to compare my results. Also it seems a lot of people take nitrite and nitrate into consideration. Considering a lot of YouTube channels always fixate on numbers and I get most of my information from brs. Maybe I should step back and continue to get my information from reef2reef.