he survived for almost 2 months, i jus pulled them out because the piranhas are growing so damn fast i almost saw death in the near future. i can't believe how big my ps are after only less then 2 months. its amazing to me. i feed them such a variety, shrimp, smelt, silver sides, hikari gold, hikari staple, krill, rosy reds, super-gold hai feng color enhancing pellets.