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Betta's can be a very aggresive fish, especially the males. They may go after smaller slower moving fish that stray into their territory of the tank. If they stress out the fish enough that they kill it they will nibble on it, however Bettas are not a large carnivores and shouldn't be fed feeder fish. In fact, scince most feeders are goldfish (of a sort) the feeder may stress out the betta to the point that it will kill the betta. It is best just to feed a betta high protein flakes. Most pet stores that sell bettas also have food formulated for bettas scince it is such a popular species.

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17y ago

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