I saw that someone wrote about the tap water. When we first started we found out that our city water tested high for ammonia also. We kept testing our tank water it was never getting better, then we decided to test the tap water one day, what a shock when we found that.
I did a water change and the water is looking alot better now. I also got new filters so I hope that will help. It is little particals floating in the water too by the way.