a few things i see that are wrong with your setup
1: your soil looks like cactus sand
2: you shouldnt be adding any nutes yet
3: you have multiple plants in 1 container
4: your soil looks like cactus sand
5: lookslike you Mght have 60 total wats of CFL in there.
anyways. you really need to be reading and figuring out your grow before asking any questions about yeild. as it stands right now ill be surprised if you get 4 grams off those plants.
do your homework, save your money and buy some 1/2 way decent equipment. I fully understand wanting to grow because your on a budget and cant afford to buy marijuanna for street/dispensary prices but all your doing is wasting your money.
my first grow sucked, i spent like 50 bucks and got no where fast with my dinky CFL's and cheap potting soil. i went out and bought a tent for 100 bucks, some decent soil for 20 bucks. and a cheap ass HID grow light kit and my marijuanna cultivation has never been better. I have since upgraded and improved over the past couple years and im still not done. i have roughly 0 money invested in my grow because im able to grow enough for me and enough to sell to pay for my expenses. its cheaper to invest and do shit right then it is to 1/2 ass it for a lousy 4 grams.
cheap 600w electronic dimmable switchable ballast kits that come with a 3 year warrant, cool tube, bulbs and timer is around 160 bucks off amazon.com.
heres a list of things to buy
1: a real light...fuck CFL's yeah people say you can grow decent bud with them and you can but by the time you get done buying 100 fucking CFL bulbs you could have a nice HID grow light kit and be growing great herb.
2: a tent or a grow room, fuck micro stealth grows...they are a waste of time and money. stealth yes is worth it bit not micro stealth, if your going to build a stealth cab 3x3 min, pants need room to grow and get big.
3: ducting and fans to keep shit cool
4: GOOD SOIL, you already have the fox farm nutes why didnt you get the dam soil too? it work and works well
5: more containers, every plant needs its own container...end of story.
now you may be thinking..."what an asshole" and im sorry if i come off that way, im trying to give you decent advice that i wish people would have given me 2 years ago instead of letting me waste hundreds on micro stealth cfl stupid shit grow rooms. I had people telling me i could gorw Awesome buds with CFL and they were right i did, i had so many fucking CFL's in my tiny little dresser cab that i couldnt keep the thing cool and im suprised i dint burn my house down.
anyways take my advice as just that...advice. if you want to continue with CFL be prepared to have your room looking like a hobo's photo studio. if you want to grow some amazing herb and have your friends tell you you have the best shit they ever smoked....take my advice and invest a little cash into your hobby, just like any other hobby you can 1/2 assed it and be satisfied with the outcome or you can put the time and money into it and be proud of the outcome...
RMTB's 2¢
anyway you choose i wish you luck sir and happy growing.