Maybe someone can give some advice--I brewed a true brew all malt amber, my first attempt at home brewing, on 11-7-10. I racked it to a secondary on 11-14-10. The beer settled nicely and was clear seemed to be reddish amber in color. Everything seemed to be progressing nicely. Fast forward to this past weekend 12-3-10. The beer had remained the same for 3 weeks in secondary and I was going to bottle the beer along with another batch. The amber had become cloudy overnight from friday to saturday and there was increased activity in the fermentation lock. The beer is not quite as red as it was. I now have foam which I assume means the beer is fermenting again. My question is do I let it run this course? Will I have to add yeast to it again when I bottle? Any suggestions would be greatly appreciated.