Well We're At 12" After A Month

ola, everyone....well its been about a month now, were at 12",(startin to smell dilectable) i think im gonna start flowering them. by the way thanks for the help everyone, it really helped. i picked up a pH meter and a moisture meter at the home depot for about 20.00 bux....also picked up a water pH test kit too. the pH in the soil is around 6.7, which it think is good, ive been feedin em every 3 days or so, when the moisture meter hits #1, the water here is at 6.5, which is fair...so things are running well. i only have 4 plants now, so i fifugre i might as well flower em before they outgrow the closet. but heres the questions....when will i be able to tell sex??? and when the sex is shown should i keep the males and harvest em all...or should i just keep the females and turn em back to veg state, on 24 light on, then take clones??? but look at the stem, its as fat as my middle finger, sweet huh???(just hope the 2 biggins are fem...ya know)

sorry heres the pics!!!!fire it up!!!!!!!!

Looks great dude...I dunno get the opinion of one of the seniors here, but I think you would almost wanna wait a bit to flower...but wait on the flower for a bit at least...you dont want males at all, and you can tell by when you do flower, males will have small grapelike things, and the females will have 2 white hairs coming out. You want to get rid of the males asap. But I would almost recommend that you clone each one, and if you have a seperate space, flower them there because then you can get rid of the males. Read a guide on cloning, or Widow Makers grow guide....Lookin nice thou