Okay, I've been fishless cycling for 2 weeks now, and my ammonia hasn't budged one little bit since the very first dose. It's at 4.0ppm. I know several people on here do not beleive in the bacteria in a bottle products, but I also know some of you have used them. At this point, I am willing to try anything!! I am going to town tomorrow and am stopping at the lfs. Looking for suggestions of which prduct to try, anyone who has used them I would appreciate suggestions, thanks!!