So the nitrties showed up about 3 days ago and are now in an area that is difficult for my API test to resolve. My API test kit goes from 2ppm right up to 5ppm and honestly they look identical!!! My Ammonia has dropped dramatically and I am having to bring it back up to 3ppm daily. I noticed in the guide that if the nitrites get over 5ppm that I should do a water change, however I really can't tell if it is over 5ppm. What do you guys recommend?
Thanks!
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