yeah its super hard to tell male and female. I never saw them lay the eggs on the substrate so i never did know male from female, i only had suspicions. Its good your getting the rockwork, they are cave dwelling. I kept mine successfully with non aggressive mbuna and also the haps, but my haps were not huge when i got them so i dont know if full grown haps would eat them if you bought young ones. I suspect they would try LOL. For as delicate and pretty as they are i have to say pound for pound they are one of the toughest fish i have kept. Had one corner and beat the hell out of my 6 inch male venustus (brichardi was 2 inches LOL) they had the entire tank of haps and peacocks, all 18 fish crammed into a 1 foot corner. Mean buggers when paired off and not in their own tank (then they are super peaceful) Plus they can take care of themselves when alone.
