The White, or Spotted Piranha is one of the biggest of the Piranhas. They are aggressive and, although they are said to not attack man, they should be treated with care and respect. The body is elongated in relation to other Piranhas.
Black spots cover the body but fade with age, as the fins darken.
Serrasalmus rhombeus is often confused with the Black Piranha, Serrasalmus niger. Provide these predators with plenty of hiding places made from driftwood and plants. They are shy fish and take fright easy if the proper conditions aren't provided. Light levels should be subdued by the addition of floating plants. White Piranhas are best suited to a large species tank in schools of five or more.