Red-bellied pacu

Piaractus brachypomus

A small red-bellied juvenile becomes a giant grey pacu

Adults have a deep silver-grey body, short head and small mouth.

A lifelong giant-fish installation is needed; confinement does not safely stop growth.

Appearance and identification

Juveniles resemble red-bellied piranhas; crushing rather than cutting teeth are a useful distinction beyond colour.

Juveniles shoal, but adults may not; give space and watch.

Keep substantial swimming space, secure heavy decor and protect equipment, with filtration suited to the waste load.

Combine suitable prepared food with plant foods. Small fish and crustaceans can also be eaten.

Small fish are vulnerable; constant activity can disturb timid companions.

Strong plant browsing makes delicate planted layouts unsuitable.

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