One of the traits I look for, are markings on the lower jaw area. Males usually have markings, females are devoid of, or have very light markings.
The contrast is fairly obvious in the photo from above.

This also carries over to other species of Parachromis, like the motaguense below I had.
Male

Female

The contrast is fairly obvious in the photo from above.

This also carries over to other species of Parachromis, like the motaguense below I had.
Male

Female
