Here are 2 of mine. The blue one is an Escondido (female) the other is a male cyan. Once the eggs hatch they will turn even a lighter shade of white and black. Typically the females will have a black spot on their dorsal fin, but not a guarantee. Hope this helps 
http://www.monsterfishkeepers.com/forums/showthread.php?t=181986
http://www.monsterfishkeepers.com/forums/showthread.php?t=181986

