LOL BG like those CANDY BALLS you have!! The QT police were all over you for that one too!
Its always the best idea to QT new animals. If you know what signs to look for you should know within a month if you have a sick snake but it can be very subtle. Its also good to get to know its feeding habits and give plenty of acclimation time even if its totally healthy. For some snakes the stress of the move can bring out sickness that otherwise would have gone un noticed.