How many piranhas can i keep in a 35 gallon?

[thebrandon]

you can keep exactly 0!

I disagree

I think you could easily keep 2/3 of one in that tank...

 

[7itanium]

lol....

I used to keep a single red belly in a 20g high

this was back before I knew ANYTHING about fishkeeping...

he did surprisingly well.... but I wouldnt recommend keeping one alone, and there isnt enough room for another one