Native to Southeast Asia, Asian arowanas inhabit blackwater rivers, slow-moving waters flowing through forested swamps and wetlands. These popular aquarium fish have special cultural significance in areas influenced by Chinese culture. Arowanas are sometimes called 'dragon fish' by aquarists because their shiny, armor-like scales and double barbels are reminiscent of descriptions of dragons in Asian folklore.
There are 10 types of arowana commonly kept as pets; 4 from Asia, 3 from South America, 2 from Australia and 1 from Africa. Arowanas are solitary fish and only allow company while young; adults may show dominance and aggression. Adults feed on other fish, while juveniles feed on insects.These fish are best kept with live or frozen feed and they easily outgrow the tank within 8 to 10 months. An aquarium of at least 150 gallons is a minimum, while tanks upwards of 400-600 gallons is preferable. Australian species are best kept alone in aquaria.
- Arowanas are freshwater bony fish of the family Osteoglossidae, also known as bonytongues. In this family of fish, the head is bony and the elongated body is covered by large, heavy scales, with a mosaic pattern of canals.
- The dorsal and anal fins have soft rays and are long based, while the pectoral and ventral fins are small.
- The name "bonytongues" is derived from a toothed bone on the floor of the mouth, the "tongue", equipped with teeth that bite against teeth on the roof of the mouth. The arowana is a facultative air breather and can obtain oxygen from air by sucking it into its swim bladder, which is lined with capillaries like lung tissue.
Name & Variety of Arowana