Rainbow

My son wants a BRB. I have read good and bad things about them. Do they tend to bite more that other boas. Are all boas that way. I know if they are held alot it helps, but I am not one for biters, lol.
We have balls now and they are kept in a rack. I would prefer to keep a boa in the rack also. How would you keep the humidity up in a rack, a hide with moss? Thanks in advance!!

I wouldn't suggest keeping them in the same rack as your BP's,They should have a temperature gradient of 75 - 83 degrees, and temperatures exceeding 85 degrees can be fatal.Plus their humidity requirements are 75%+ and neonates should be kept around 95% humidity with temps around 77 degrees.I would suggest getting a seperate enclosure if you go with a BRB.