I know a good bit about softshells. Not Chinese specifically, but softshells. I've had one for about four years now and I've done a lot of reading.
habitat: with turtles, outside is always best if you can do it because a)it's outside and b)you can provide the turtle more space for less money, and softshells do well with lots of space. You can use a plastic kiddie pool or a Rubbermaid bin or a livestock feeding trough...pretty much anything that'll hold water as long as it's durable plastic. If your climate is the same as the turtle's natural climate, you can keep it outside year-round as long as your water's deep enough. However, I'd keep the turtle inside in winter until it's a year or two old. Give it a smooth rock or piece of wood to haul out on in the sun, but make sure the container is partly in the shade as well. A good water temperature is anywhere from 75-82. They're very messy so you'll need to change the water regularly, and this even more important because softshells are more prone to infection than most turtles. Also make sure your turtle has somewhere to hide. They're nervous and won't eat enough if they're out in the open. I throw dried leaves from a nontoxic tree in the water; you can use sand (for burrowing), but I think that would just be too much of a hassle to clean.
If you're keeping the turtle in a fish tank, this stuff is pretty much the same; you'll just have to put a lamp over the basking spot.
food: insects, bits of raw fish, canned cat food, dry dog food, shrimp (fresh or dried), floating turtle pellets, worms, crawfish, pelleted fish food
and I think it's it. Hope it helps....