Description
Scientific Name: Osteoglossum bicirrhosum
Common Name: Silver Arowana
Adult Size: Up to 36 inches (90 cm), though some can grow larger in ideal conditions
Life Expectancy: 10–15 years in captivity, possibly longer in the wild
Habitat: Native to slow-moving rivers, flooded forests, and lakes in the Amazon Basin, and other regions in South America
Minimum Tank Size: 250 gallons or larger (due to their size and swimming needs)
Ideal Temperature: 75–82°F (24–28°C)
pH Range: 6.5–7.5
Water Hardness: 3–12 dGH
Temperament: Predatory and sometimes territorial, but generally peaceful with other large fish of similar temperament
Omnivorous: Yes
Diet includes small fish, crustaceans, insects, and plant matter
In captivity, they are often fed live or frozen fish, shrimp, and high-quality pellets designed for large predatory fish
