Possibly= these extremely carnivorous fish- pit bulls of the freshwater- are in many cases ILLEGAL as aquarium pets- and for good reason. By the way they are not sharks and are not related to the...
about every 2-3 weeks!
A Piranha can breed up to 200 times a year
Piranhas will eat anything even their own kind when the're hungry.
Piranhans would be the natives. Piranhas would be the fishes.