My 2 biggest Discus are doing a strange thing. They have not spawned but from watching them i believe the Melon is a male due to his aggressiveness towards the other discus i have, and i believe the Red Tourq is a female because she is the complete opposite to him in nature. They are both in my 4 foot alone at the moment, and they get along like they are in love. But i have noticed a very strange thing they do, the Red Tourq puts her head in the air showing her belly to him and he pecks at it, she lets him do this and then chases him away. Has anyone got any idea what this is?