I'm really bad at reading those color keys. Anyways the other day I had Nitrates, Nitrites, and Ammonia. My nitrates have went up since then, nitrites went down to 0 and ammonia stayed consistent. It was a deep emerald green either 4 or 8 PPM. I was wondering if this would have frozen my cycle? I did a major water change tonight right at 5 gallons. This brought down the ammonia to either 1 or 2 PPM. Will this get it moving again or have is there another thing that would cause a cycle to freeze all nitrites being converted to nitrates and leaving the ammonia high?