So, I just tested my ammonia, nitrite and nitrate to monitor my cycle. Ammonia dropped from 1 ppm to .50 ppm, but nitrite has skyrocketed. It's way darker than the highest option on my color chart! (For anyone who has the API master test kit, it is like royal purple). Nitrate isn't even detectable; there was no color change whatsoever. Is this level of nitrite dangerous or is this all a normal part of cycling?