I have to add that a couple of the items in the original post should be approached with caution. The sanitation statements of using bleach or ammonia. I would not recommend a beginner to use either of these. Particularly the ammonia. I wouldn't use rubbing alcohol in the airlock either unless you are sure no added oils were added to the alcohol. Just use water or a sanitizer (k-meta or Na-Meta) solution. Overall good info though.