Its going to be tough to find CB clown treefrogs, Dendropsophus leucophyllatus. If you get WC clowns make sure to have a vet de-worm them to be on the safe side. Keep them like your typical treefrog, good ventilation, daily misting, plenty of foliage to hide in, and so on. Check out the Meet the Frog article on these frogs and read the red-eye care article, as you can keep this frogs in pretty much the same way as you would Agalychnis callidryas.

These frogs will eat small crickets, bean weevils, and Drosophila hydei (fruit fly). Remember to dust these items before offering them to the frog(s). They are nocturnal, so you may not see tem feed that often, don't let that freak you out. Feed them just before the lights go out for the night.