2 and a half foot plant in my closet, and its only 5 days into 12/12!!!

that's right. out of 8 seeds, six survived in my hydroponic microgarden closet setup. i will be posting the entire journal when it is complete. my question was that one of these plants has always been growing at a much more significant rate than all the others, when will it stop shooting up? it's 30" right now and getting taller everyday! i'm using 250 watt MH (all i have) and some fluorescents mounted around the sides. they are in 5th day of flowering, no signs of sex yet. all my other babies are about 19-21". I feed them 3-5 a day with botanicares' triflex nute system in the res for about 10 minutes. pH is constantly maintained at 6.2.
could this she just be a vigorous he? the plants are only in 6 inch pots which is also a concern to me regarding their growth rate. any response would be much appreciated

my guess is its prolly gonna be a male

damn, that's what i was afraid of. i keep checking everyday for sings of sex, but i guess i'll just have to wait at least another week or two. thank you for the input and i didn't even know having 11 blade leaves was that rare, as i happen to have at least 4 or 5 of them.

well they arent rare on the strains that actually get them,but 11 fingered strains are rare. Ive never grown a strain with 11 fingered leaves...by the way, what strain are you growing

honestly, i have no clue. i just used some seeds out of a bag of goods and they all sprouted. i even took one out of the dome and left it on the kitchen counter for almost a week with no attention because it didn't look like it was going to sprout, then voila, it did, and i threw her back in the garden and she is doing jsut fine. although this is my first grow, i know its better to just order some danky seeds or jsut get some clones but i do plan on ordering for the next crop. any thoughts on an indica indoor strain with fast harvest rate? i plan on doing another micro closet grow the same size with 250 watt MH and microgarden. i'll probably try another nute system as well

here are some close pics taken with a camera phone.

here is a pic of an 11 blade leaf