Hi Steph,
Gee I don't recognize you from the box turtle board.
LOL kidding of course..

My little mud does not like to leave the water very often so he stays under it 99 percent of the time.
He loves to eat a bug more than anything.. basically any bug you feed to a box will work for a mud.
Some of them will accept pellet food others won't.. won't hurt to try it.
They need the UV/B just like most turtles and darn it now I've forgotten what else you asked so I need to hit post & go look.
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PHRatz