I would use cfl for grow and hps for flower..... it looks like a good space, 1 400w hps is good for 1-2 plants in a 4foot by 4 foot space, your room is 2x that size, so get a 600w hps or devide a 4x4 spot in one corner so the light is not to spread out over a large area.... hope this helps with...
I'v read about probs in veg, the only thing that it could of been was 24/7 light, never read about prob with18/6
24/7 seems not natural to me ,but I have no first hand ex with it
http://cgi.ebay.com.au/Vehicle-Car-Ozone-lonizer-Air-Purifier-Generator-/160432288767?cmd=ViewItem&pt=AU_Car_Parts_Accessories&hash=item255a8273ff
this would be good for small grow
I dont have a grow thread , hear is some pics
https://www.rollitup.org/members/mississippi-227477/albums/end-grow-1-12808/
I'v got 1x1000w in cooltube+ a 400w just hanging down for side lighting .
I like the cooltube, lots of ppl dont because it takes 5% of the lumes , but if u can get 30%...
this is a dear one
http://cgi.ebay.com.au/Ozone-Generator-1000mg-per-minute-40W-/220562275691?cmd=ViewItem&pt=AU_Seed_Starting_Hydroponics&hash=item335a893d6b
get as cheep as $40
Mr west my I have a minute of your time+lacey have a look at this ?https://www.rollitup.org/marijuana-plant-problems/335319-droopy-plants-red-stems.html
looks good, same size as my flower room,just a couple of little things
1... lift duct , thats on end of cooltube, so no shadow ( in last pic)
2... try to shorten+straitern duct from carbon filter to exit(not important) but may need next size up,
3... get one of the fans up to just above canopy...
https://www.rollitup.org/members/mississippi-227477/albums/43-days-into-flower-12556/924277-4/
this plant had 40g dry 1 1/2 ounces, does your estermate count stem,leaves wet,
I'm not trying to be smart, what makes u say 1/2 ounce??
that poor thing, hope u get enough for one joint, I carnt think where to start with advice(to much) and its to late to help,soz
there is allways next year.
dont flower just yet, fix nut porb first, flush , weight 2 days, flush agan until run off water is same PH as water put in, then light nute feed with veg nutes,weigth 2 days, then flower
you might wont to get EC pen