there was also someone on here that said if you want more females dont let the tap root touch the botom of the pot its in this wil cause more stres to the plant than anything else. The seeds need to be started in two liter soda (pop) bottles wraped in alluninum foil to block out the light . light also causes stress.do not start seeds in anything else just dirt and a 16 hour photoperiod for the first month. i havent tried this myself, but seems to be worth trying like maybe 10 seeds nand 10 seds your normal way