Big tank with a basking rock that is accesible, with a heat lamp over it. And a filter. Mine did fine with no heated water..these things live everywhere anyway.
They're pretty hardy.

I fed mine goldfish, lettuce, and ground beef with calcium powder mixed in. If they have goldfish, they will hunt them when they're hungry. And some lettuce leaves thrown in weekly. Ground beef was occasional.

It's good to not overfeed them, they really do fine with goldfish and some lettuce for a week, that's how they evolved...

Note-they are handleable, but they do have sharp beaks and will bite if you tease them. Only hold them for short periods as they need to stay moist. Pick them up gently by the sides of the shell. They can get pretty big, I've seen some that are over ten inches long as adults.