I am 1 week and 1 day into my first fishless cycle. When I did my nightly tests my nitrites were still right up there but my ammonia had dropped to 0. Yesterday they were still in the 3-4-5 range. Is it normal for these to drop so suddenly? I have read to expect nitrites to do this. Anyways I added my normal amount of ammonia after and will test again tomorrow to be sure it wasn't a fluke. I am so excited!! Guess I better get hopping on the fish selection. Shouldn't be long now before I can go fish shopping!! Lets see I'll take 1 of those, 2 of these, 5 of them. Not gonna be that way. Wooohooo!!