If you are looking to have a single fish in your massive arowana tank, jardinii is probably your best choice. Indeed, although some specimens have been reported to successfully co-habitat with other large fish species, most individuals demonstrate no understanding for others whatsoever. The Asian arowana, or dragon fish , is a prized aquarium species from Southeast Asia, revered for its dragon-like appearance and association with prosperity. Once endangered, its legal breeding has ... This fish is the most sought-after Arowana in the world and can go for thousands of dollars. The unique looks and coloration of this fish make it look very similar to white Asian dragons.