Pseudotropheus johannii have many different variations. Some females are solid yellow/orange, while others have faded-thick brown or even black stripes. Just like some males are almost solid black with faint blue while others are blue with distinctly darker stripes. I have two males that are on opposite ends of their color spectrum and of my two large females; one has a dark lateral stripe and the other is almost solid orange. Of course, it really makes no difference if your fish in question is a hybrid or not unless you want to have pure-bred fish for breeding/selling purposes and you can see what your fish looks like much better than I can haha.