Tigerfish is the common name for a variety of species from several different families of fish, usually on account of their colouration or otherwise fearsome appearance: Alestiidae Several species in the genus Hydrocynus of the family Alestiidae are called "tigerfish" and are particularly prized as gamefish. These African fish found in many rivers and lakes on the continent, and are fierce predators with distinctive protruding teeth. The two most common species and probably most recognisable i… (More on Tigerfish)