I have one female BRB, a juvie (about 4.5' long at this point). The young need very humid conditions (close to 100%) and are usually best kept in a tub setup to achieve that and on a humid substrate. As they grow, they can tolerate less (around 75% ish is talked about a lot). The can and do climb, but also hide a lot (especially during the day). Mine is currently in a rack setup, but I've got her 4'x2'x15" AP cage waiting to be set up. I will be offering her a basking shelf and a couple branches to climb on also, in addition to your typical hides and water bowl.
IMO, it is very important to purchase from a good breeder. BRBs are known to be a little more sensitive to medications (i.e. PAM) and as such, trying to start off with a healthy one is very important. Rainbows R Us has a great reputation btw, if you're shopping for a breeder.
I'd suggest a size-appropriate tub setup with ventilation, a good layer of substrate like cochusk, coir, organic soil, etc. and a water bowl big enough to soak in if needed. Some fake plants to provide additional cover would also be appreciated. Temps need to be lower than BPs, I keep my hot spot at about 85f and cool end of the tub is around 76f. My girls spends most of her time on the cool side unless digesting. I add some water to my substrate a couple times a week to keep the humidity up (I just pour about 1/2 cup water into a few different areas in the substrate vs. misting). Although they like high humidity, they don't need to actual substrate to be wet.
Note that some rainbows can be very defensive as babies and some never tame out. Mine has been a dream and was easily handled even at a young age, so I'm assuming I got lucky.Mine has a good appetite, so no complaints there.
Rainbows R Us has a great reputation btw, if you're shopping for a breeder... I will probably try to get a high red male from them to go with my female in a few years and they have some striking morphs as well as line bred animals at very fair prices IMO.







Mine has a good appetite, so no complaints there.
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