If I was to guess I'd say the top ones a Female and the bottom ones a Male. But like most will say... only venting will tell, for sure - but males tend to be larger, more dominant and have the longer thicker extensions to the dorsal fins.
If I was to guess I'd say the top ones a Female and the bottom ones a Male. But like most will say... only venting will tell, for sure - but males tend to be larger, more dominant and have the longer thicker extensions to the dorsal fins.