Most Piranha buffs will tell you 20 Ps per gallon. But in my opinion, anything larger than 80 gal can hold 2-3 more. Im 2 Ps over the rule with my 125 gal, and everythings perfect!!
Plecos and anything 2wice their size for the meantime!!Velocity said:Okay thank you everyone. Another question: what would be some good tank mates with them?