They stay small 30-40 inches but mature very fast (between 1-2 years) CB tend to be so-so temperaments. Not very nippy but sort of flighty. Even some WC tame down to be handleable. But feeding... they tend to be voracious when it comes to eating.
As you might have read about they are VERY temperature sensitive. They like it pretty cool 60s and 70s. Get a bit past 80 and no more O.p. coxi.
They also like very moist environments, so lots of wet sphagnum moss and cork bark hides on top of damp shredded coconut husk substrate.