Short answer, not for life.would a red belly pacu work ?

The small white fish is my albino rb pacu released into a big pond with some adults next to it. Mine was 16-18” to give context of how big they get, even in captivity. It’s hard to see because of glare but the nose of the adult right next to him isn’t even in the picture.
Not to mention they are extremely active and need all sorts of room to swim in or they start to become extremely anxious and mean.great fish but need so much room.