Possibly. You see the yellow tips at the end os some of your leaves? Thats the first indication that your plant has too many nutrients available in the soil. You might want to feed with just water for the next couple of feeds then weaken your nutrient mix. I've got no experience with growing in soil and am pretty new all round but thats my obs.I'm giving too much nutrients?
surprised nobody has told u this already but you can determine sex before putting it under a 12/12 regimen and without taking any clones and sexing them either! JUST VEG YOUR PLANT. when yr plants start to reach sexual maturity typically when they are around 4-5weeks old providing they are not stressed, will show u their sex, preflowers, during the normal 18/6 or 24/0 veg cycle without u needing to do anything. e.g the pic below is the 8th node up of one of my 4week old big buddha cheese under 18/6 and as of yesterday has just started showing a female pre flower, i dont know if u can see or not but i can assure u theyre there, the tiny calyx and two hairs? In a few more days itl be more prominent and il expect a few more pre flowers to show.not just looking at it at this stage - you need to wait to put it into flower before you will be able to tell. That means under 12/12 light cycles.
As for strain once your is well into flower some experienced growers here might be able to give you an idea but I don't think anyone will know for sure.
dont cut leaves, when the plant has finished with any given leaf it will drop off itself or will come off with the slightest pull, if u can gently pull the leaf and it doesnt come off the plant needs it, only time i ever physically cut leaves is late in flower when u wana remove any dying leaves to prevent them moulding up in yr bud, even then they mostly come of with a very gentle pull.I cut 4 since they were getting a yellow look at the end of the leaves. the baby leaves fell off.
i assumed from this statement u were feeding? So u havnt fed anything to the plant in its water at all? Cant u provide any info on the soil other than "dunno what soil"? Did u buy it? Did it come in a bag? Does it say anything on the bag? Soil from the Back garden? Stolen from the nextdoor neighbours orchid pots? Something? Are u allowing the soil to dry and the pot become light between waterings? How far do you keep those lights from the plants? Are they cfl's or tubes? Do u have extraction and air exchange sorted?I'm giving too much nutrients?