I have a 29 gallon terrarium with a screen lid (that's 30" L x 17" high x 13" deep) free in my classroom. I was going to use it for my cuban knight anole, but I picked up a used 24"x18" ET that he went into. So I think I would like to put an arboreal display snake into the 29 and make it "naturalistic" with plants and such. I need something that will be comfortable in that size tank for life (I could possibly upgrade 2-3 years down the road) and that will be tolerant of the "motion" of a classroom of respectful HS students. My students like to watch and look at the animals, but aren't of the type to bang on glass, poke at it, etc. This tank in particular sits up high on two file cabinets and all they can really do is view from afar. But I don't want an animal that would be too spooked to feed in a classroom environment (like a dumerils).

I figure there are three big varieties of arboreal constrictor-- the ETB, the ATB and the GTP. I don't know a whole lot about any of them, except general care and feeding. Would any of these be appropriate for this environment? If you have a suggestion for an animal I've not thought of, also let me know.

I have no expectations of anyone handling this animal, except for occasional cage cleanings, for which I am happy to hook, so temperament isn't an issue. I know the arboreals can be bitey.