I am planning on purchasing Revolution for my two ferrets, but I just have a question about dosing. I was planning on purchasing the mauve package for puppies and kittens (I believe its up to 5 lbs, but I'm not sure). Anyways, will I need to buy two three month supplies of Revolution, 1 for each ferret, or will one three month supply be enough? Fiona is about a pound and a half, and Nigel is about two and a half pounds. Thanks! Erinne, Fiona and Nigel [Posted in FML issue 4899]