Mine is a Brazilizan, and she likes lots and LOTS of humidity! She will actually burrow sometimes if she's feeling grumpy. I have her set up in a corner aquarium that is almost completey sealed, with an ivy plant in there that is taking over, I do some cleaning and refresh her orchid bark upper layer, but i think I've managed to do a general simulation of the tropical rainforest floor with the coconut bark base and a constant recycle of the water due to the humidity recycle. She is healthy and beautiful (a bit snappy tho-but hey-they are sometimes). I looked at the Columbians, but like the brazilians better....ok-my 2 cents! Kay

I have a Brazilian Rainbow Boa, but they are very similar to Columbians.

I would just say to make sure your top is covered to hold in humidity. I am not familiar with jungle earth substrate. I use towels.

You know, a great place to find out TONS of info on Rainbow boas is in the Kingsnake.com forums. Some of the country's leading experts on Rainbows post on their Boa: Rainbow forum. I have learned a tremendous amount about the care of my snake from them.

forums.kingsnake.com/forum.php

good post! i've been wanting a red tail but have also recently been reading about rainbow boas and may go with one when the time is right.