Going to be getting my first tortoise next month and saw something like these at the pet store: https://www.amazon.com/dp/B00WM33GBI/?tag=exoticpetnetw-20. Thought a couple would look nice in the enclosure, but is there any danger it would try and swallow them? Is there a minimum size of rock to put in an enclosure? I would be getting a younger tort at a reptile show, probably a Mediterranean species.