I think my cycle has crashed or stalled out. I started my cycle over a month ago for my 20 long with treated Prime tap water and dosed Ace's Hardware pure ammonia to .5ppm. I waited over 3-4 weeks to see if my Ammonia would drop and it hasn't I had nitrites a week ago at 1ppm and now its at 0 and pH 6.8. My thermometer is reading 82/84 degrees, Eheim 2232 outlet nozzle is at full blast and is creating plenty of surface agitation for oxygen. I need help before I drain my tank and start over again because I never got past the first stage of Ammonia turning into Nitrites. I dunno if my substrate Akadama is stripping away the minerals for bacteria to grow? I also threw in 2 big lava rocks from my friends established tank to help boost the cycle, but that didn't work out.