smaller one must be male as p14 is also a black ray so it will grow big as leo as well. Female tend to grow bigger each time they are pregnant that's why they get so big compare to male.
I realy want to know the max size of a leopoldi male. But everywhere I look I just found a size not related with gender! Someone knows the max size of leopoldi males?
no one will know your answer as every ray is different, one thing I know from my experience is male always smaller then female. So unless you buy an mature long time captive male then you will know how big it will gets.