I just caught my little kenyi trying to do a shimmy dance for the large Kenyi. The big one was like "Get away from me" and swam away. I have no clue what any of their genders are. Edit: As I sit and watch them these two and squaring off. The Big Kenyi pushes one away using that kiss method ( but doesn't fight or attack) Then the other one keeps trying to shimming for the big fish and that other two keep attempting to square off.