I don't think there's anything wrong with plastic boxes temporarily if you can keep temps and humidity level stable in them. I have mine in a tall transparent dog food bin, but since White's need ventilation, I cut out a large section of the top and replaced it with mesh. The mesh should have been hot-glued on the OUTSIDE of the tank. (Forgot that, and it makes me worry about heat lamps.) IF heat is an issue for you, you might want a glass QT tank instead. I've had to be very careful about how I heat mine since melting/ releasing fumes is an issue with plastic. Edit: For example I suspend my heat lamp well over the bin instead of resting it on it.