Hi Fish people,

Q1) Would you prefer Piranhas or Pacu for a 8 fish group tank?

Q2) And at what size / age Pacus turn to black or loose red belly?

Q3) I want them for just an year experience, how much they'll grow till then?

Q4) What fishes could be Piranhas or Pacus community mates at this young age ?

Thanks a lot for helping me out with my doubts