The legendary Piranha is a specialist’s fish, and not for the average hobbyist. The razor sharp cuts the array of teeth can inflict are well enough documented, albeit with extreme and unlikely examples being described in the literature. If kept as a shoal the feeding must be regular and adequate to minimise the risk of cannibalism among them, and even then an occasional attack may take place, resulting in the loss of one of the group.
The Wimple Piranha (catoprion mento) is found naturally in the Amazon basin in South America. It is a little different from the Red Bellied Piranha because of the presence of two rows of teeth. The piranha is different from others in the piranha genera due to the fact its primary diet in a natural habitat would be fish scales.
The Red-Bellied Piranha (pygocentrus nattereri) is the best known of the genus, and is available through a whole range of sizes, as stocks are aquarium bred for the trade. Tiny silvery babies can bite even at their small size, so care of handling is essential throughout their development.