moved to a new area so now i must b self sufficient!!! help desperate for nice budz

hello people, I am attempting to grow 5 lowryders in my wardrobe i planted the seeds on 13th oct in jiffy pellets and transplanted them into good soil with some hydroballs at the bottom for drainage and dotted about so i guess they are getting on for about 3 weeks now. i have 4 that are looking good and one that has turned yellow (it has been like this since seedling) and has been fine but is now slowing down compared to the rest. i have been giving them a really light dose of veg nutes bio bloom. they are growing under 1 x 150w cfl and 1x 125w cfl both with 2700k bulbs i have a 6700k but was told to keep them under the 2700k at all times been on 20/4 since they sprouted my tent is 600x600x1600. i have a carbon filter 4" inline fan and a little 6" fan for circulation. temps are around 80 degrees. i think the biggest of them might be a male i will post some pics it has got some little balls around the stems? are these the calyx of a female or big old man balls? i dnt have a lot of experience and this is my first proper grow. i have moved to a new area so am in DESPERATE need of weed!!!!! hope these little babies come through ok!! any help/advice would be greatly appreciated as this is really a bit of a stab in the dark for me have invested a bit of money would be nice to see results. strain is williams wonder x northern lights x ruderalis. thanks for takin the time to read

Looks fine. I see white hairs on a few so female calyx Your conditions sound fine so herming would be odd.
As for the yellowing seedling ..... check your ph level in that pot. I could just be a runt... I get the odd runt from seed with varying wierd stuff happening now and then, Sometimes it's nothing you've don't or can even remedy. I still grow em out as sometimes they improve as mature.