Any promise for this fish? also Male or Female?

[KNMG]

Thanks for all the feedback! To bad I didn't do my research a little bit better when I got the fry in the beginning. Out of the 12, I was able to keep 2, sell 5 and the rest either killed each other or ended up getting sick from fighting. Poor planning on my part. So in the end I broke even on my money and ended up having 2 decent fish. Live and learn.