Research shows that Oscar fish is very fond of apples bananas grapes pineapples mango and water chestnuts. However keep in mind that not all fruits are suitable for the Oscar fish because some of the fruits are high in acid which does not suit them. While fruits are healthy for fish they do not like to eat them.

Oscar fish Oscars can eat fruits such as oranges bananas watermelons etc. Can i feed meat to my oscar fish Even though the oscar fish is aggressive and it will eat the smaller sized fish in its tank it is not recommended to feed them animal meat. This will only cause Baby oscar fish can eat flakes and pellets. You can also feed it live food such as bloodworms. As oscar fish is omnivorous you should also feed it vegetables occasionally. While feeding food to the baby oscar fish you should make sure that it is not too large to feet into the mouth of the baby oscar fish. Any vege that you would eat is safe to drop in your fish tank. Wether the fish eat it or not is another question.
Oscars and firemouths are predators they mainly eat meat and thats what their guts have evolved to process. But having said that throwing in a chunk of cucumber frozen peas or zuchinni will do no harm. They may eat some or not. Do oscar s eat fish Sure fish are a component of their diet in the wild. But goldfish are not. Why is this an important distinction Goldfish are cold water fish. As a result their flesh is much higher in fats than are fish the oscar s digestive system is designed to consume. Increased fat in an oscar s diet can
What kinds of vegetables fruits are good for oscars or can i feed any types of them I would stay away from citrus fruits and things that would be difficult for them to eat peas grapes and various other nutritious vegetables seem good to me. Like us fish have favourite foods and things they do not really enjoy What do oscar fish eat They are omnivorous so they ll eat a wide variety of foods. In the wild they mostly live off a diet of small insects and crustaceans supplemented by some live fish and dead plant matter. You can feed them a pellet or flake diet with the occasional live food treat. Fish and snails love cucumbers zuchinni oranges apples etc. Just do not leave them in a tank for more than 8 hours or so. Blanch the veggies first though that makes it easier for them to eat.