A worker is seen cleaning at Arowana World Breeding Farm 300 km (186 miles) north of Kuala Lumpur March 6, 2012. The arowana, or most commonly known as "Dragon Fish", is known for its agile body, sleek shiny scales and the "whiskers" that give it a resemblance to a Chinese dragon. Demand for the fish is so high that some fetch up to $50,000. Picture taken March 6, 2012. To match MALAYSIA-DRAGONFISH/ REUTERS/Bazuki Muhammad (MALAYSIA - Tags: BUSINESS ANIMALS SOCIETY ENVIRONMENT)