GUESS WHAT I DID!!

[pacuman]

I jus succally mixed a 2 pihrana and a oscar in the same tank! and they get along great. They hunt togher as a team its so cool!

 

[a1wonder]

How big is the tank, how long have they been together and how old are the fish?
Sorry to ask very so many questions but it's pretty important. Some time young fish before they reach their adult size can grow up in a community tank. But with age comes aggression and size. I'm sorry to say it but I promise you within a month you'll have a dead fish on your hands most likely the Oscar. Please take my advice that combination is just not meant to last. I'm sure you'll see shortly the true aggression of the fish start to show up.

 

[pacuman]

yea i kno but there babies now and it only for a few weeks till my 115 gallon gets here

 

[StingrayKid]

Yeah, from what I have seen piranhas can be devistating when mixed with other species. That Oscar would have to be super agressive to even land a single blow on a full grown Piranha. I my opinion, Piranhas are best kept in a species only tank. Good luck though, but it might work out.