Gena and tiger fish
Tigerfish are related to the feared piranhas of the Amazon but few people would equate them with the neon tetras commonly sold as aquarium pets. This large family of fish, the Characins are found in South America and Africa and include a huge range of diverse species. The scientific name of tigerfish translates to "striped water dog" and with their ferocious rows of sharp conical canine teeth they certainly resemble their namesake.