PayaraMan;4303922; said:And I'm pretty sure a fish that get's a max of 15" can live in an 18" wide tank.
In most cases, yes. Not this one. These fish are EXTREMELY skittish. They get claustrophobic very quickly and easily in a small tank. They NEED open space otherwise they will bash the glass until they kill themselves. They also need calm tankmates. Rays, aros, polys, etc. I've had good luck with other characins like SDs and pacu, too. Convicts (or any "punk" cichlid) aren't a good idea.
They like lots of current, well oxygenated water, and temps in the mid to upper 80's, otherwise you will be battling ich every other week.
