Not to toot my own horn, but TOOT TOOT!
I have a thread in this forum with a photo of my pair of Pelmatochromis nigrofasciatus sitting on eggs. I looked at the photos you had in the other thread, I only saw a male , or males. Females tend to be much smaller and stockier in appearance. Very mild mannered species, my 12cm male doesn't even chase the 3cm swordtail fry in there.
There are two kinds of error: blind credulity and piecemeal criticism. Sound skepticism is the necessary condition for good discernment; but piecemeal criticism is an error. - Egyptian proverb