Otherone;3870979; said:It's hard to say exactly why your "piranha specialist" says use feeders, could be ignorance of the vitamin b inhibiting enzyeme contained in goldfish or could be he just wants more money from you by buying his goldfish. Unfortunately money making at the expense of the fish is more common than not in this industry/hobby. Lucky for you the old trends and myths about piranha keeping is being successfully de-bunked in this forum.
yeah I would question the credentials of any "specialist" that recommends goldfish.