Charlie, SO far we have been putting them in a JZ-BZ cage with a candy plug. We make sure they are not released for at least 24 hours. I never did get around to using the Laidlow cage mainly because the introductions came to an end just about that same time. I have materials here to make one next spring. I am not that fond of the small cage given I also understand the queen can suffer if she does not have enough room to move around.