Sexing Baby Platies

[snazy]

Here are a couple of pictures I just snapped. Don't pay attention to the plants. There's a problem with the tank since I changed the substrate and it suffered major melt down which I can't seem to fix.  Just the anubias is still surviving.
 

 

 

[OldMan47]

Forget trying to sex very young fry. Some people have methods that they believe, but my own experience is that I must wait for fry to develop to a significant extent before I can reliably sex them. Even a poor sexing effort can be counterprodustive. If I think that my "female" tank is correct, I end up with a few males in that tank. The end result is that I must then move around other fish to truly separate the sexes.