So I have been having a lot of issues getting my 20g high to cycle. Ive had it for 3 months and all I ever get is high ammonia, no nitrites or nitrates. The guy at my lfs is at a loss as to why after explaining everything I have done to him. After doing some more research, I'm wondering if my pH could be the reason my bacteria won't grow? It's at around 6.5/6.4. I think it needs to be neutral or basic or the bacteria will die, right? I started to cycle a 10g aquarium, actually got some nitrite readings one day, and the next day they were gone. My tap water is around the same as my tank water at about 6.5 pH. Maybe the tap is killing the bacteria? How could I raise the pH in my tank?