Rainbows are great snakes...... Very beautiful and becoming more popular everyday....

Babies almost are always very nippy, many calm down, many don't as adults. I've had adults that are nearly as tame as any ball and I've some that would tag me every chance they got. The most important issue with them is water and humidity. If for some reason they go without water for even a few days they will drop like fly's. Use a good sized heavy water bowl. One it hold more water for them and two they tend to spill the water often making for a mess.

I sold off most of my adults a few years ago and am now growing a decent sized group of them up again.