This gives the the illusion of being a giant head with a large eye. I've never seen males damage each other in the battles. Males are what I call casually polygamous. They try to aquire harems, but are happy with one female. They don't bother females very much.
Breeding requires slightly more extreme conditions.
My experience is that the eggs will not hatch until the pH drops below 5.5 with the same low hardness values listed above. They are excellent mothers, keeping everything away from their fry. The fry are easy to raise on baby brine shrimp and powder foods. It has a distinct caudel spot. Just wanted to be sure.