Hobbit Posted October 8, 2021 Share Posted October 8, 2021 I’m getting different results between my API test kit and my co-op test strips! Noooooo 😭 For me it’s the nitrite. Observe: Coop test strip says 5ppm nitrites. API says 0. I’ve done both tests three times. I shook the nitrite bottle before testing to make sure the reagent was all mixed together since I haven’t used it in a while. My other tanks show 0 nitrite on the coop test strips. Has anyone else had problems here? Either with a false negative from API’s nitrite or a false positive from the co-op’s nitrite? Any water factors that could be messing up either test? (Just to get this out of the way: I know there are some people that never trust test strips. You don’t have to comment just to say you never trust test strips. I gotchu already. 😉👍) 1 Link to comment Share on other sites More sharing options...
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