When will guppy fish show color? My guppy had fry by what time will I be able to tell their color and if male or female?

It takes about two to three weeks befor you will see any color and you can take a clear glass and put one fry in at a time look throw the bottum of the glass and you can tell what the sex of the fry are a magnifying glass is helpfull in doing this but in all about two weeks to tell what the sex is and as for when there born they are born with no color that comes latter remember to keep them by there selfs the mother will try to eat them so will all the other fish as well and wait tell there 1inch befor buting them in the main tank and they like to be keeped worm around 78% to 80% for the first month hope this helps you