look at this and..

[poknsnok]

Tell me what the difference is between the 1 male and 2 females..

http://www.liveaquaria.com/diversden/ItemDisplay.cfm?c=2733+3&ddid=44218

 

[nikon187]

i think the male has an extended dorsel spine right at the front ( taller then the females ) Colour usually has something to do with there sex but all three look very similar colour wise. I would guess the male is on top( seems more evevn coloured and is displaying )

Not sure on anything though, merelly speculation at this point. But nice looking fish