Enclosure - very large, preferrably outdoors...95 degree basking spot...cooler area ~75 degrees...both dry and humid hiding areas...large water bowl for soaking...UVA/UVB lighting
Substrate - not picky...repti-bark and sphagnum mixed...mist only occasionally...keep fairly dry...flat slate for filing fast growing nails
Diet - live insects and lots of them...dusted crickets, superworms, earthworms, waxworms, roaches, grasshoppers, and just about anything else that's not poisonous. Some take prepared foods and fruits/veggies, mine only nibble. They are supposed to love mullberries. Mine love tomatoes and prickly pear cactus pads and fruit.
Boxxies favorite TV shows - Lost, oh no wait, that's mine.
I'm glad that you're looking into it first. Here's my two cents.
I keep one colony of Ornates and one colony of Deserts outdoors in the Southeast. I won't bore you with the long, painful story of it all.
If you're in the native range of ornates, they are very easily kept in the proper outdoor pens. If you live out of their natural range, and in an area that is unlike their natural climate, they can be very difficult to keep outdoors. I wouldn't recommend keeping them outdoors in Michigan unless you have significant pen-building and box turtle keeping experience.
*I'm generalizing here...I know that there are exceptions.* Ornate box turtles are like little shelled coyotes. They are very wiley, intelligent, and stubborn. They are active, even fast, and are much less docile than T. carolina. Wild caught ornates rarely tame. True, they will learn to accept food from a keeper and even run towards them at feeding time. However, if they are to thrive, they should be given a ton of space, lots of exercise, and mental stimulation. They may survive in a rubbermaid box, but I don't think that they'll thrive. I sometimes have to keep one indoors because of an illness or injury. As soon as they're healthy, all you hear is the constant thud of their shells on the enclosure floor as they try to climb the walls. They hate being indoors. My T. carolina, on the other hand, could hardly care less as long as they're fed and secure.
In short...wild caught, pet store, indoors, first box turtle...a recipe for disaster in my opinion. First, I'd start with captive bred juveniles ~3 inches or less. They're much more hardy and adaptable in my opinion. Second, I'd start with a T. carolina if you'd really like to have a box turtle. Steffke's recommendation to adopt a Three-toe is an excellent idea. I don't think you can legally keep Easterns in Michigan. Third, I'd read all of that information given to you and I'd build a large indoor pen with all of the trimmings before I ever brought the turtle or turtles home.
My personal exception...yearling ornates and deserts are quite possibly the best reptilian pets I've ever had. They're nearly bullet proof, they eat anything and everything, and they've really seemed to bond with me. If you absolutely must keep an ornate, I'd get a cb yearling. I'm not saying that they're easy...let's just say that they're the least challenging
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