Yes, you can use the Rubbermaid or Sterilite tubs from Wal-Mart. I would suggest looking at something in the 15-20 quart range. It will need to be big enough to hold at least 2 snug hides and a water bowl comfortably. Since you've had him for a week, you can try feeding. If he eats, then wait 2 days before moving him to a tub. When you go to get the tub, I would suggest also getting some binder clips to keep the tub lip and lid pinched together...