jonny_dw
Fishaholic
Most "aggressive" would be a large rhom,manueli,irritan,marginatus etc. All need experienced keepers which imo, you dont have.
Theres no vicious type piranha, varies on different species and personality of individual fish. There are types that are more aggressive than others, but to be honest, you just seem to be out to find a man killer fish which there is none so your going to be disappointed with any piranha.
Seems were going round and round in circles now so this is my last input.
Theres NO man killer piranhas.
You shouldnt put any other fish in with them.
Enjoy your fish
okay thanks....what kind of experience do need for one of those piranhas?
More than you appear to have to be honest, some they have very specific needs. For the last time, stick to your red's and gain experience.