My kids and I are the excited but clueless new owners of a Russian tortoise named Torterra (the boys named him after a Pokemon character). I'm hoping to get some advice on his new home... I was planning to keep him inside our condo in a 54 gal rubbermaid tub, but now I'm thinking the balcony would be better for more sunlight and space. We live in Hawaii so it's warm and humid pretty much year-round. I would love to let him roam free on the balcony. Would it be ok to have smallish tubs of substrate in different areas of the balcony so he could climb a ramp and burrow when he feels like it, or is it necessary for the entire balcony to be covered in a layer of substrate? Any advice would be greatly appreciated!