White Piranha (Serrasalmus Brandtii) Piranha science is not an exact science, some will say this is a different species, or subspecies, i get all info from the internet just like you and then make an educated guess. The White Piranha is a medium-sized species characterized by a pale, almost silvery-white body, I wonder when they got the name from. This coloration provides camouflage in sandy or lighter riverbeds, helping them avoid larger predators while gangstalking prey.