Okay so saturday i started brewing a hef. well not a german but an american style anyway my question is after a few hours i started to get a lot of bubbles out of the airlock and now i am only getting a 2 to 4 bubbles a min is this normal for this style? I have read for other types that when you start getting that few of bubbles that your frementation is almost done but that seems two quick anyway I am just wondering whats going on thats for the help