I don't have a boehmei, but I do have a ruhnaui.
I keep it in a vial, and mist a couple times a week. I keep it moist, but not wet. Mine is not prey aggressive at all, and I've found it eats better when I disable the prey first. It almost seems frightened of live crickets, or lobster roaches.
It's molted twice since I've had it, and is STILL less than 3/4"...
they grow SO SLOWLY!
Good luck with yours!