Select options Silver Arowana (Osteoglossum bicirrhosum) $22.99 – $159.99 One of the larger predatory fish found in the Amazon Basin, the Silver Arowana is part of an ancient family of fish known as the bonytongues. A highly adapted surface feeder, Arowana are usually found close to the water’s surface in heavily overgrown areas with lots of cover. They are incredible jumpers, with adults able to leap several feet out of the water, and need to be kept in securely covered aquariums. Due to their enormous adult size, the Silver Arowana is recommended only for dedicated aquarists who can accommodate these giants in either a large custom aquarium or even an indoor pond. Specimens offered for sale are acclimated to aquarium life and feeding well on frozen and prepared foods.