I’ve been cycling my tank for around a week, and I have a question. I added ammonium chloride about 21 hours ago, and I measured my parameters twice today. At 12:00, the ammonia was around 1-1.5ppm, and the nitrite was 1ppm. I just measured again, about six hours later and my ammonia is around 0.2ppm, and nitrites are around 1 still. Could I do a large water change (50%) and add fish tomorrow?