Found: In the shallow waters of Thailand, Cambodia and Vietnam

How about becoming the proud owner of the formidable Siamese Fighting Fish? These vibrant fish could illuminate even the dankest of fish tanks. Their vivid coloration and flowing fins make them a favourite with exotic fish lovers everywhere.

However, despite their pretty-boy looks, these fish are seriously tough cookies. If you put two males in the same tank, a bloody fight to the death would erupt. But please, don't try this at home kids.