hows it going, the picture with the yellow on the leaf looks like its a nute problem, to much nute so back off slightly and you should have no more yellow spots appear, the spots wont go they will stay their but they wont get any worse unless the nutes keep going to much.
you know your guessing which is male and female, well your probably right, if all the plants are from the same batch of seed and all from the same mother and father then the chances are the taller more spindley plants are male and the shorter is fem, the males usually show sex sooner anyway i think, mine never my females showed sex sooner but they was all different strains so cant really compare by that, out of my 3 plants i put into flower i got 2 females and 1 hermie so removed that one and will grow it out for seeds, now my other 2 are just starting to form buds at the ends of branches so cant wait till it moves along a bit further, i got loads of white hairs all over the place,
you know your guessing which is male and female, well your probably right, if all the plants are from the same batch of seed and all from the same mother and father then the chances are the taller more spindley plants are male and the shorter is fem, the males usually show sex sooner anyway i think, mine never my females showed sex sooner but they was all different strains so cant really compare by that, out of my 3 plants i put into flower i got 2 females and 1 hermie so removed that one and will grow it out for seeds, now my other 2 are just starting to form buds at the ends of branches so cant wait till it moves along a bit further, i got loads of white hairs all over the place,