Bass is a kind of fish, and it is a common species, they are a kind of carnivorous fish. There are wild bass, but also under the conditions of artificial breeding bass. The wild will eat different foods at different stages of growth. When they are newly hatched, they will not eat and will absorb the nutrients in the yolk. About two weeks later, they start eating, and the main food they start eating is plankton. When they get older, they eat mainly smaller fish, and they're just learning to hunt. When they grow up, they can eat more food, such as fish, earthworms, shrimps, frogs and so on. In addition, if there are too many bass in the surrounding environment, the bass may also eat other small bass.
Cultured bass are similar. They don't need to be fed when they first hatch. After about two weeks, you can feed some rotifers and small crustaceans. After they grow up, they can be fed some small fish. After they grow up, they can feed more food, the most common two types are fish and shrimp, in addition to feeding some artificial feed.
As mentioned above, bass is a carnivorous fish, they can eat a variety of food, of which small fish is a common type. However, when bass are relatively small, they mainly eat plankton, and when they are large enough, they will prey on some small fish. When they are fully adult, they can catch more kinds of small fish.