I have a 5month old redfoot in a 60 gallon aquarium that'll hopefully last him until I l move back to my hometown. My question is, does he have enough air in there? I keep it a closed chamber (egg crate sealed with clear plastic garbage bags and I open it once a day to feed and bathe him. There's not a lot of places for air to get in and out (I leave a small hole in a corner), so I'm worried that he's not getting enough oxygen. From your experience, do tortoises do well in closed enclosures like mine?