- Live foods such as brine shrimp, daphnia, and earthworms
- Freeze-dried foods such as bloodworms and tubifex worms
- Commercial goldfish pellets or granules
- Fresh or frozen vegetables such as peas, carrots, and spinach
- Fruits such as apples, oranges, and grapes (in small amounts)
- Algae wafers
- Cooked eggs (in small amounts)
- Mealworms (not too often, as they can be high in fat)