Sexing Johanni Fry

[MapleNeil]

My johanni had some fry, and they are all orange/yellow. Some of them have a deeper color and some are orange and showing brownish stripes. Are these darker ones going to turn blue eventually? Or would male fry be blue right from the beginning?

 

[MapleNeil]

Here's an example. Very orange and some stripes are visible. The female adults are yellow but sometimes show brownish stripes.