I think this is the type of my black piranha

[unbeatablec]

Serrasalmus Marginatus is the name of it, it was the closest looking one to my piranha.

but the store said it was a black piranha, it is 3 inches and it doesnt have red eyes, when it grows will it get red eyes? one of its black pupils on one eye is really small, is that normal, plz help.

 

[M|L]

black piranha is the common name for Serrasalmus rhombeus.

 

[Face2006]

yeah that is a marginatus from the Serrasalmus family but I don't believe they turn black..do u have a picture u can post?

 

[NJKILLSYOU]

most serrasalmus species are very similar in appearence. i doubt you have a marginatus.

 

[Face2006]

Yeah I got a 8" Marginatus and I have had rhom before but the marginatus has a bigger jaw, and look at the top of them, the marginatus is oddlly shaped on top, mine has yet to turn black if its suppose to?..unknown to me... good luck in finding out what it is

 

[AquaScape]

Marginatus only comes from Argentina. They do not turn black like Rhoms do and there eyes don't turn red. hope this helps,
Pedro