Josh, he mentioned in an earlier post that he is not keeping the burm.
Disturbedcries87: good for you that you're asking a lot of questions and doing your research on these great snakes! You'll be happy you figured it all out and got everything set up well before-hand as these snakes are not as forgiving as corns for mistakes in husbandry!
I recommend checking out this site for more info about them:
http://www.rainbowboa.co.uk/care.php
Also, as stated, it's better to house the rainbow boa in a good-sized sterilite container with the correct proportions than to try to make a vertical tank work. I believe a lot of folks here use human type heat pads that you can get at Walmart pretty cheap. (Just make sure it doesn't have an automatic shut off!) Just put it under one-third of the box and check the temps in different places in the tank and make adjustments as needed. For spot checking temps as well as checking the temp of the food, I recommend getting a TempGun (Radio Shack sells them or you can get them online: google tempgun.)
As far as being able to see your snake in a sterilite container: some people cut out windows on the sides and replace them with clear plexiglass or glass siliconed onto the inside of the box. Again you'd want to do all this way before getting the snake so you can make sure it holds, and the fumes have dissipated before putting your snake inside. Do NOT use duct tape (or any kind of tape) inside the enclosures: they won't stick where you want them but they WILL stick to your reptile!
You'll want to make sure that you can secure the lid VERY well. These are strong snakes and will escape if they can.
Also rainbows spend most of the daylight hours under the hideboxes... I usually only see mine late at night when she comes out to drink and cruise the terrarium or climb her tree. So, although they are amazingly beautiful, it can be disappointing to never see them out in the daytime. Most boas and pythons spend the day hiding. So if you're used to day time snakes, this can be a disappointing realization.
Good luck and keep asking questions. Your future rainbow will be glad you did!
