When to Sex? Clone?

Hey ...
I have a few plants that are about 21 days old ... when can I sex these babies. When can I take clones?

why would you want to sex a clone??do you not have female clones?

No these came from seeds ... I was asking when can I sex them ... and when can I take clones from them??
Thanks for any tips

Oh ok.. preety much if your in hurry and want to find out if they are females you could throw them into flower now and would prob find out in about 7 days or just wait till they start to show preflowers on their own which could take anywhere from 1 to 2 months depending on the strain and how much light they are receiving.

To start cloning I would wait to find out if plants are females or not(you dont want male clones)then once you know you got females start to take clones in the first week of flower.. Try to take the clones from the bottom growth of the plant as they will not develop into big buds anyway