It does really depend on how long "temporarily" actually is. They can survive up to about a week in the fridge, so long as they have a ready food supply in their container. The unfortunate part about it is that as they consume the food, they will become less and less nutritious to whatever you are feeding them to. So long as the time without food is short, you should be fine. If that time is more than a few days, you may experience a crash with them, but you can recover from a crash rather easily if you catch it in time.
:fish1::hammer: