Box turtles should be kept in at least a 20-gallon aquarium. The larger the size of the cage, the better it is. An outdoor enclosure is the most preferable location to keep your turtle. Provide a shallow dish with water in it, no deeper than the turtle's chin. Another requirement is a hide box, where the turtle can escape from the light and heat.
Box turtles tend to prefer early morning feedings.
The balance of their diet should be made up of mostly vegetables and some fruits. Good choices are greens, leafy weeds, tomatoes, apples, strawberries and cantaloupes. Supplement their food with a calcium carbonate or lactate once a week and a vitamin preparation once a month. There are only a few guidelines you must follow to insure the health of your turtle. Never paint or drill holes in their shells, and be careful not to forget about them just because they are quiet pets.