Those were all my fish at one time, so yes.
the collection contained
10" S.elongatus
6" P.piraya
3" P.cariba
2 2" P.denticulata
7" S.geryi
5" S.irritans
6" S.marginatus
some misc red bellys, rhombeus and some other unidentified serrasalmus that turned out to be rhoms or medinai
also had a 8" red that had "flames" of red on its sides