Diogenes;3898381; said:hey jack,
I'm just curious, we always recommend pygos to people for small shoals, but what about S. maculatus? They stay smaller. Is it because they need more room to shoal without killing each other? Just wondering...
I think it's because they are harder to shoal, especially when it comes to people new to piranhas. with pygo the chance of having a shoal is much much higher and easier.
I don't think anyone enjoy watching their fish being killed off by tank mates, that'll probably discourage them away from keeping piranhas.