Size: 60–120 cm
Food: molluscs, insects, crustaceans and fish
Habitat: flood plains and tributaries of Amazon
The elongated arowanas are aggressive predators. They require a large tank with lots of open swimming space. The males incubate the eggs in their mouths for about two months until the young have used up their yolk sac. When danger approaches, the male's whisker like chin barbels are used to coax the young back into the safety of his mouth.