Found in river systems of Australia and a large area of the Indo-Pacific, Barrumundi are a large fish that can reach over a metre in length. Barramundi are opportunistic predators, and will feed upon anything they can, including insects, fish, prawns, other Barramundi, and have even been observed eating crocodiles.

Although they live in freshwater river systems, Barramundi will return to marine water to breed. Spawning occurs in sheltered estuaries, where the hatchlings will grow before eventually returning to the freshwater rivers. All Barramundi will begin life as males, and will change into females upon reaching a certain size, and require marine water to undergo this change.

The National Zoo & Aquarium is home to 2 Barramundi.