Sexing baby guppies?

[petcrazy213]

Basically, I want to know how to tell the boys from the girls.

Come Wednesday I will have 20 lovely 2 week old baby guppies and want to get an idea of what sexes I have. I've noticed that some of the babies are sleek and unuform in color (greyish) and some have a dark area (seems like where the anal fin and dorsal fin will be). I was wondering if this is how to tell males from females at such a young age? Also, how long before the babies begin showing any color?

Thanks!

 

[pl*co]

Kinda tough at this point, I think. Males are smaller, plus they also sport a gonopodium. Found this in another forum...

http://www.guppylog.com/story/2004/10/7/8136/28962

"It will take 3-4 weeks before your fry "sex out" into identifiable males and females. If your guppies gave you very many fry, you should have several males."

 

[Web Gazelle]

You will have to wait a few more weeks to find out the sexes. They all look alike till they mature.