Chuck: Regarding your ferrets living in an aquarium and the statement "it works just as well...as a wire cage". I have to disagree because of the inadequate ventilation (AIR) with an aquarium. The following is from the FML FAQ - Subject: (5.2) Do I need a cage? How should I set it up? <snip> Aquarium tanks have enjoyed a certain popularity as ferret cages, but overall I think wire-mesh cages are better. Tanks may be easier to clean, but they don't provide much ventilation at the bottom, and your ferret may feel somewhat isolated from whatever's going on in the room. Besides, big aquarium isn't exactly cheap.If you plan to keep your ferret caged whenever you're not home, and you'll be gone most of the day, a generous cage size is about 2 X 3 feet and 2 feet high (60 X 100 X 60 cm). A second or third ferret could share that size cage. <snip> In the best interest of your ferrets, I hope you will consider changing their cage. IMHO...Shari [Posted in FML issue 1669]