there is NO way to determine a seed's gender, by visual inspection ... nope, uh-uh ... you grow them out for a month, or so, cut the lights back to force flowering (12 hours), after a few days, they should indicate sex ... then, do as you wish ... I usually place them back into vegging (18 hours of light) until the branches start alternating, indicating maturity , typically after 5 or 6 sets of branches ... keep in mind, the plant will double, or even triple, in height, during flowering ... good growing :smokin: