Pet turtles have varied dietary needs depending on their species, but in general, they require a balanced diet that includes a combination of commercial turtle pellets, live or frozen prey such as insects or small fish, and fresh vegetables like leafy greens, carrots, and squash. It is important to research the specific dietary requirements of your turtle's species to ensure they are receiving the appropriate nutrition. Additionally, offering calcium supplements and occasional treats like fruits can help keep your pet turtle healthy.