What I always suggest for folks that haven't done this before is kinda like what you are considering. If you are going to do a scrog it works great. Take at least two clones from each plant as you change the light cycle to 12/12 and again two weeks in to the flowering light cycle. Mark which plants the come from of course and get rid of all the males. You want to trim off the bottoms any way so you have nothing to lose except the medium you put the clones in. Plants will usually show sex in less than four weeks, soo...Lets say you started with 12 plants and you meet the law of averages. Four weeks from now you would have 30 known female plants, 6 of which have been flowering for four weeks, 12 that are clones four weeks old and 12 clones that are 2 weeks old. No disruption to your original plants. Genetically the 24 clones will be almost the same age. Four weeks later when your ready to put those 24 female clones in to flowering you may not need two clones from each any more. I used this method to go from 20 to 100+ very quickly. VV |