Distended fins – Unpaired fins fully distended.
Open opercula – Opercula open at more than 60°.
Caudal swing – Waves the caudal fin towards the opponent.
Pelvic fins flickering – Flicks the pelvic fins towards the opponent.
Bite – Tries to bite the opponent (mouth movement detected).
Ramming- Hits the opponent with the mouth closed.
Charges- Fast swim in the direction of the opponent.
Surface air breathing – Engulfs air from the surface (often with air bubble release).
Frontal display- Distended fins and/or open opercula and head at +/- 60°.
Lateral display- Distended fins and/or open opercula and head at +/- 60-120°.
Back display- Distended fins and/or open opercula and head at +/- 120-180°.
Aggressive color on – The fish fully darkens the body. Red and blue colors often become visible.
Color off
Color on