Mixing Species

[Hamilton88]

Does anyone have any experience of mixing piranha species successfully?I have kept Red belly in the past and now have a Spilopleura which is about 6 inches I was planning on buying some baby red bellys for the same tank my gut feeling is the spilo will eat them tho or can they mix

 

[Ansorgii]

I don't think solitary piranha species should be kept with other fish that look somewhat similiar to them.

Red bellys can be kept with quite a few fish, but they should not eat them.