i read that you tell sex at about after a week into flowering.. and that the females have little white hairs that grow (pistils) and males do not... i am a newbie too though and that's just from reading peoples grow journals growing guides etc...
I also had a question.. for any one who has any advice would be greatly appreciated... my leaves i notice that only two of the plants are starting to point up ward... is this a sign of them being too hot? under watering? or just them being healthy reaching for light... the lights are about 2-3 inches away and its about 82 degrees (F) in there... i felt like that was a little warm so i got rid of the 42w 2700k bulb and the 14 w 2700k bulb... they were just putting out too much heat.. and now it's about 76 degrees (f).... my ph is about a 7 .... i Have attached a few pics!! Thank you ahead of time!
them leaves pointing upward is normal, they are just reaching for the light, if they would of been overwatered, or heat stressed the leaves would of been drooping, yellowing, and curling on the edges with a burned tip. ( i know how this look's cuz i did it to my girls lol)
Don't worry for now, they look damn good , and soon they will go in overdrive, growing like crazy all over the place
Thanks for the info on female plants! Those plants look fine to me, they could just be reaching to the lights, but I'm not an expert. Overwatering causes my leaves to droop down more, so that shouldn't be a problem. As for heat, my thermometer reads around 90*F most of the time which is pretty high, but they seem to be doing okay, so your temperature shouldn't be a problem either. Can't wait to see more pictures. cheers.
the sexing part is quite eassy, just have them 12 light and 12 full darkness, uninteruptable darkness with no light leaks and it wil show it's sex in 6 to 14-15 day's, the more mature the plant get's, the quicker it show's sex. if you force it to flower when she is still a seedling, or in it's first week of veg it will take up to 13-14 day's.
but when it happen's , you can't miss it, it's very simple : either you get some small tear drop shaped with 2 white hair's pointing upward thing's, or you get ball's, wich at first are also pointed upward's and then they droop and start cracking.
be verry careful with them balls cuz if they burst prematurely you can say good by sensemilia .
Hope this helped
Peace !