Hello Everyone, I haven't added ammonia in about a week. Nitrites were 5ppm+ and nitrates were 150ppm+. I did a 75% water change 48hrs ago, and added Dr Tims Bacteria. My nitrites were 2ppm after the water change and nitrates were at 40 ppm. My nitrites are currently at 5ppm+ and nitrates are still at 40ppm. Thoughts?