I started cycling my tank in early October, and it has been a month since then. I waited two weeks after adding pure ace hardware ammonia, and when nothing changed, I impulsively bought tetra safestart and put that in. Nitrates went up, and ammonia went down slowly for a few days, and then it stopped. Waited another week or two to see and nothing. No nitrites, and ammonia and nitrates still at about 4ppm and 20ppm respectively. Did water changes at the advice of a friend, which I regret now. Added more chemicals, being impatient, (Dr. Tims one and only), and the same thing has happened again. About a week has passed and ammonia has barely gone down. Maybe from 1ppm to .75 though I don't believe it has changed, and nitrates are at 3ppm. Nitrites still 0. Does anyone have any advice? My tank is a 29 gall, at 80 degrees, and 8.2 pH. From everything I've learned, chemicals or not, cycling shouldn't be stalling for over a month.