Very pretty!! And a nice choice too.![]()
I would feed mice at this stage. And, yes, a small adult should do. You want something that will be nearly as big around as the snake, but not quite so large that it leaves a lump. Every 7-10 days would be a good schedule. Should be fine to start on Tuesday.
This boa doesn't look like a teeny baby, so that's why I suggested what I did. Once a week feeding really shouldn't be a problem at this point as he's small enough. But it's hard to underfeed a boa and very easy to overfeed. When in doubt, go slightly smaller and less often.![]()