I say that they are def. two females. You can add one male, but keep and eye on them. When he picks the one he wants to pair up with, the couple might harass the third-wheel female. It happened in my 55. I started with a trio, the male chose his lady, and the couple pestered the extra female quite a bit. I ended up moving her into my 29 before they stressed her too much. My couple has since spawned 4 times with 2 of those spawns hatching successfully. I now have tons of ram fry in a 10 gal growout tank. Good luck!!