sure. why not. if you've got them in there with a decent sized burm, i doubt that he'd even bother with trying to eat them, 'cept maybe around feeding time. but i think other snakes, eg amazon tree boas, would go after them in a snap. there could possibly be some concern about skin toxins and what not, but i doubt that'd be much of an issue with most tree frogs. (green trees?) all-in-all, i like the idea. i like the interesting inter-species display thing, though many purists would frown.
-kyle
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LET ME KNOW IF YOU HAVE:
1.2 Kimberely rock monitor
1.1 Baja Cape Gophers
ANY Dendrobates pumillio
ANY Eastern glass lizards
thx.