Hi,
I have 2 Paratheraps bifasciatus 1 smaller one and 1 bigger one and want to know what are their sex? and how do you tell? First set of 2 pictures is the smaller one and second set of pictures is the bigger fish. Also will the smaller one ever catch up in size to the bigger one? Any Advice would be much appreciated.

I have 2 Paratheraps bifasciatus 1 smaller one and 1 bigger one and want to know what are their sex? and how do you tell? First set of 2 pictures is the smaller one and second set of pictures is the bigger fish. Also will the smaller one ever catch up in size to the bigger one? Any Advice would be much appreciated.
