She is hiding in that damn rock on the left, it is hollow with an entrance in the back. He needs a bigger female that just wants to breed all the time.
The argentea are definitely lookers but I'm not crazy about them to be honest. They don't have the best personalities and just want to kill each other all the time. From what I've kept, Vieja is one of my favorite genuses of fish looks wise, but personality wise they don't really do it for me as much as some others. I really like the cutteri I'm this tank, they're a lot of fun, and freddys are too.
If you REALLY still want a male down the line I'll see what I can do, obviously I can't keep 5. I'm sure you could order one as well with decent size on it, but I haven't seen many pictures of fish as nice as I think mine will turn out as adults. I have been seriously caring for them like my own children (if they had gills and lived in a glass box in my living room...).
If I could find someone decent to take my big Oscar I could get one. I have had him for quite awhile so I couldn't give him to just anyone. Had to get rid of my Syns because they would nip him. A seller I know in Thailand has a really nice sized male but didn't order because no room. http://www.youtube.com/watch?v=XY8f4jgDAU0 The owner says hes about bit over 10" now.
Yeah let me know down the road when you decide to split them because if I have the room then I might take one. How big are they now?