Box turtles are one of the reptiles that has fared poorly in the pet trade. In the past they were often mistaken for easy-to-care-for pets that could be kept in an aquarium. Now we understand more about them and their needs, which includes a large enclosure. Furthermore, they do best if they can spend at least some time outside - and depending on where you live they might be best of outdoors all year round (i.e. if you live in a warm climate or where box turtles are native). Even if they can't be out year round, they will still benefit from some time outside even if it is just for warm summer afternoons. Building an outdoor pen takes some planning and effort, but your box turtles will thank you! See "Building Outdoor Pen for Box Turtles" for tips on building outdoor housing.