I’m doing a fishless cycle on a 10gallon. It seems to have stalled, I’ve been dosing it daily to about 3-4ppm ammonia using Dr Tim’s and after 24 hours the ammonia is usually down to around 1-2ppm. I’m getting nitrites and some nitrates but didn’t test those the last few days. Today the ammonia is at 4ppm so it basically did nothing overnight for the first time. So I tested pH which went from about 6.4 to 6 (maybe lower..?) today. My regular tap water is 7.5 give or take. Should I do a water change or what? I don’t have coral even though I read that’s a good way to raise pH.