A piranha is a type of fish from the Serrasalmidae family and a member of the subfamily Serrasalminae. It’s a freshwater fish ...

Size - Typical piranhas are, on average, are around 13 to 25cm long, with 10 razor-sharp teeth, usually around 4mm! Piranhas, such as the Red Bellied piranha, can grow slightly larger at 35-40cm long.