With either species the profile will be higher in males, and more torpedo shaped in females. Here are some examples.
young (yet sexual mature) male motaguense
closer up, note the smaller sporting
now compare a female
note the lack of smaller spots on the female but the few large ones
These traits (especially the high profile) hold true on most all the Parachromis like predatory species and their cousins
A male Nandopsis tetracanthus below
now a female
Below a video from a Cenote in Mexico with a young female friedrichsthalli below (in the carwash Cenote Aktun Ha), she shows up at about 1 minute in,
some other cichlids are Tilapine invasives
Aktun Ha