I don't see why you couldn't. Although a 3" piranha in a 125gal might be lost for a while.probably keep him in there for a year or two, if he gets huge you might have to upgrade to a lil wider tank.
Interests:The 5+ senses, wrenchin, and you know.........fishes!
Posted 07 August 2010 - 12:20 AM
A 180 should be plenty big enough for most of a piraya's life, but they're like any other Pygo with a preference to be in a group of it's own kind. Of course that's putting you in the 400g+ range!