As colorful as a butterfly!
Mandarinfish or mandarin dragonet (Synchiropus splendidus) in aquarium-Muséum Liège (Belgium). Credit: Luc Viatour. GNU Free Documentation License, Version 1.2 or later.
Native to the Pacific [an area extending from the Ryukyu Islands to northern Australia,] the tiny [6cm long] mandarinfish are reef dwellers, and feed on small crustaceans.
Related Links: