Boas are easy if you have the proper enclosure. Tanks are not good as they don't hold heat or humidity very well. A male Colombian will do fine in a 4x2x2 pvc cage. You can use a good-sized tub while he's small.

Check out the caresheet here... http://ball-pythons.net/forums/showt...tor-imperator)

One part of this caresheet that I would change is the guideline for feeding. Boas have slow metabolisms and are much healthier if they are fed smaller prey less often. Feed a prey that does not leave a lump in the snake's belly. And, at 500g, I would feed once every 10-14 days.