Can you please help us identify our new Peruvian Serrasalmus Import. We imported them as serrasalmus rhombeus an humeralis but we think there are different ones.
It's very difficult to identify young Serrasalmus... Even more with so few pics...
IMO, the smaller fishes (pics 2 and 4) are not rhombeus but I'm not sure that they're two humeralis.
