5 weeks into my first grow (First photos)

I thought i would share some photos from how my first grow is coming along and see if anyone has any advice. I'm growing 2 plants in a closet that is 500mm x 1200. Im growing 2 strains, durban poison and the other is a green crack. About a week ago i put them into 27 litre (7gal) fabric pots with the first half filled with a super soil mix i made up using a super soil kit from Dr greenthumbs and the second half coco-perlite mix. I used premium organic worm castings, compost and soil with with perlite and vermiculite. I also bought the biocanna range from my local hyrdro store and Ive been feeding them the bio veg about once a week at full strength and so far only used RO'd chemical free water. Im using 4 danson 65 watt cfl globes at 6500k. I made 2 reflectors using Dibond board and Im using 2 noctura 120mm (exhaust) computer fans with 5-12v step ups so they run at 12v through a usb power supply. I also bought a little cli - mate humidifier which has a remote and control panel which keeps the humidity in check. I set it to 70% when they were seedling and each week dropped in back 5 Percent and now its set at 50%. Im circulating the air with a couple of little usb fans and my temperatures usually float around the mid 20's (celsius). The green crack seems to be doing much better than the Durban poison which i may have topped a little too early and possibly stunted its growth? they both look super healthy though and ive just been using gardening wire to train them down and spread the bottom branches out so they all get plenty of light. Im going to top them one more time before i but them into flower in a couple of weeks time? Ive heard if you top them just before you switch the lights to 12/12 it stops them from stretching? I still don't have a light to flower them yet but all my research is pointing to building my own from a COB kit. Im thinking ill get the 8 COB Mau5 kit from cutter electronics. Ive heard you need about 30-50 watts per square foot and i think my space is about 6.5 . I figured running 8 COBS at 50watt should be enough for 8 square feet so it would be more than i need but better to have more light than not enough? Im a little unsure about the temperature of the CREE's at this point. I had it in my mind that 6at 3500k would be good and then maybe 2 at 2700? Is it true that the more red you have the faster it will flower? anyway heres some photos

Very nice.

Check out the micro grow section.

Leave for a week after topping before you switch.

GL on the finish!

Real nice little setup you have there.

I would go easy on feeding more nutes. That soil you put them in should have plenty in it to support them for quite a while in that size of pots. Don't want to burn them.

I wish I could help you out regarding the COBs but I really know little about them. Start my babies under fluoros then it's HID light the rest of the way. They need lots of red to flower well but also blue too especially during the stretch where one way to reduce the stretch is having lots of blue with some red. I'll keep my 400W MH going and fire up a 400W Super HPS with it until the stretch is over then swap out the MH for another HPS.