Kathryn - I know how long they can go without eating - my snake went three or so months without anything and he was just fine. He had been eating just fine once a week before this, though - could it be that his eating slowed down with age?
Patti - It is NOT required a snake be fed in a separate cage - that's not true at all. Web pages on it can be found here (http://www.arbreptiles.com/lastword/snakefeeding.shtml
) and here (http://pet-snakes.com/feed-snake-separate-tank
). Most snake experts do not see it as necessary at all and the rational for it can be easily dealt with. Don't feel pressured to feed your snake in a separate cage.