I have been letting them sit in warm water and they have access to water in their table.. One of them seems to be very active while the other just hides in it's shell, it will wake up and eat and be active for half an hour or so then go dig in a corner and stay there for a few hours..Sometimes it's hard to tell with the testudo hatchlings. Let's see if @HermanniChris can tell what they are. It might help us I.D. them if we knew more about them.
Be sure to sit them in some warm water at least once a day to keep them hydrated.