Uoh, thats trouble lol. My nephew is getting there at that point. Once a week would be very hard and yes they would starve. Any frog or reptile that you get will need to eat often. (Except snakes) your best bet would be a fully grown pacman frog or pixie frog. They eat a lot in one feeding and will need to be fed less often. Like every 3 to 4 days (pushing it)