If you only have room for one or two. I would grow 4 to 6 in soil under fluro's and mother them. That's vegging untill they have 4 to 6 sets of true leaves and go to 12/12 light untill you see if they are female. Then back to 18/6 to veg. Then take clones from them so you don't waste time finding out all you have are 2 males. Mothers can be kept for a long time for more grows.