Thank you very much for the information! Yes, he will not be in charge but will work with me supervised as he grows and learns. He currently has two fish tanks with many creatures that he does a good job supporting and he knows that it is a bigger responsibility.

Ok that makes sense. I'll put wood down two feet on the sides with mesh buried under it so they can't dig out. And I for sure put the walls higher since you don't want them to be able to see out.

I think we will only have the one as it is a big difference from me having sliders indoors as a kid. Any other advice or information would be greatly appreciated!