I think it is a Ps.saulosi,if it is, the male turn color to blue whith black stripes and female are dark yellow whithout stripes.Its somethimes very hard to tell what it is,un colored fish vs max color
from what i can see from your photos they look alot like two kenyi male cichlids but i could be wrong,buts that what they definetly look like to me, good luck hope some one can tell you for certain.