magic said:blue ring can kill u.
Very true, stay away from them in a home set up. But in addition to that, all carry at least a mild toxin. However, with most, the bite gives more pain than the toxin can.
When you get a set up, remember they are intelligent animals and love to get out. I made puzzles, mazes and things of that nature for one. I have a friend who had one that would pull a lever to feed itself.

, awesome pic