I don't know why but fishless cycling isn't working for me (50 gal). It's probably something stupid that I messed up but I just can't figure it out. 6 weeks ago I added enough ammonia to reach about 4.0ppm and its been there ever since. Never had any nitrites or nitrates readings. The temp has been at 85 and everything has been up and running. I'm ready to just tear everything down and try cycling my tank with a few small fish. Any help or anything is greatly appreciated.