Land turtles can live indoors, but often require lots of space, especially if they are big. Make sure they have plenty of light, but if you put light too close, you can hurt their eyes. Keeping your turtle outdoors is a gret way to keep your turtle happy and healthy, after all, turtles in the wild don't live in condos, so it's most natural that yours won't. But, if you cannot accomidate your turtle outside, your turtke will still be happy indoors. Food Food is very important because without food, your turtle will not last very long.
Some turtles are carnivores, while others are herbivores.
Most of the time, it's the land turtles who are herbivores, but it's best to ask to people at the pet store before you buy 50 lbs of lettuce for a turtle that eats worms. You can buy food in packaging for both kinds of eaters. Tortoises often like lettuce, which is good because it's inexpensive and easy to get, but be sure you use romaine lettuce because it has lots more vitamins than iceburg. The best advice anyone can get about a sick turtle is from a vet. I know vets can charge a lot of money, but if you want a happy turtle, and you suspect he's sick, the first thing you should do is see a vet.