Tank with Just Sand.

  • We are currently upgrading MFK. thanks! -neo
It would more than likely stress the heck out of them.
The plants and wood/work makes them feel more secure, especially when they are young.
 
Young Piranha;3899783; said:
I dont wanna stress out the little juvinile fishiess though :[

just give them something to hide in/behing. Piranhas are skittish. They usually need a hide when they're young. Some people may disagree. RBP's as a whole are incredibly hardy though, I don't know if stress alone would kill them.
The only piranha I've ever heard of stressing to death is S. manueli.

Maybe pick up several clay flowerpots of various sizes from HD until you can afford to scape the tank?
 
MonsterFishKeepers.com