What do you feed a baby yellow-bellied slider that is not eating?

Make sure first that you are eliminating any other possbilities for your babys reason for not eating. Does he have a sunning area? Is there enough water in your tank? Also make sure check the water temperature. Normal temp should be between 82-85F for sick or young turtles. A sustained temp. between 65-72F can contribute to loss of appetite and cause respiratory infection. Try small live feeder fish. Crickets only as a treat. Chopped green beans, carrot tops, dandelion. Make sure is is getting enough calcium and minerals. Cuttlebones are good.