Can't Figure It Out

up to a certain point. while its controversial, a lot of people practice defoliation through the whole flowering process. as long as at least half of the leaves stay on /healthy, i don't think you'll be effected that badly. i think this expresses in soil worse than other, soiless mediums, simply because it takes longer for changes in soil to effect the plant. it gets going good before you see it, and by the time you do, it would take enough cal-mag and manganese to cause other problems to fix it. if you continue to use soil, i'd suggest feeding a little heavier going into flower, build up a small surplus before you flip. not saying burn them, just give them a little more going in than you have been

for my next grow i have 7 northern lights on the way. Im going to use bigger pots and either use different soil or mix with FFOF....Do you think this problem could be light related? Or rather lack of a light spectrum that would aid in fighting off disease? Im using full spectrum but i vegged lights under it and they STRETCHED bad....so just using lights for flower now

Condition is getting worse, even though just fed with calmag and tiger bloom 2 days ago....im going to have to do some expirementing on the next flowers...feed some, and some feed none...i think these plants are done for

The soil I used is so hot it killed 2 plants. I'm not suffering a lack of anything. I used enough to last 3 months, my issues start around day 30 running autos. The plant I fed heavily on my last grow (following advice) ended up with other issues on top of this one.
If it's any consolation, my plants all finished just fine and still produced nicely. I even managed pink buds on one of the 4 Bubblicious.

as for light spectrum, I was under HPS last grow, using COBs @3500k this time.

how much are you yeilding for autos? im only getting around 15-20g...could be my pot size....my flower light def seems to be enough.

although im keeping the LED's probably 5-10 inches away from top

Last group I pulled 7.25oz from 4 plants (1 plant was 3.5oz she was under hps and COB lights from flower). I stunted 2 with some rough LST. 5 gallon soft pots. This go I should yield a lot more as my plants are all at least twice the size. Even the one I topped. I'm giving credit to the COBs for the growth rate. These are in 4.5 gallon buckets. 2 in soil, 2 in coco. The coco plants are kicking ass.

its not a light issue, its not burnt and they're growing, so your lights fine.
its mostly a natural thing. all the people you see that have green plants all the way to harvest (including myself) are giving the plant way more nutes all the way through the plants life than it would have outside, so it doesn't have to consume itself to live through flowering.
http://www.kellysolutions.com/erenewals/documentsubmit/KellyData/ND\Fertilizer\Product Label\FOXFARM_TIGER_BLOOM_10_9_2009_12_27_22_PM.pdf
that label is confusing me, theres NO Ca listed in the guaranteed analysis, but calcium nitrate is the first thing listed in the "derived from" list....if the shit is derived from calcium nitrate, wheres the calcium in the guaranteed analysis?
if i was you, i'd get myself a bag of Jack's citrus and throw away that bottle of mostly water you're paying too much for

its my buddies tiger bloom but okay ill look into this "jacks citrus" and other nutes as well. Thank you so much for the info btw. Next flower i will mix soils and get much bigger pots, also new feed too

Nothing wrong with growing in organic soil this plant is 82 days old in its 15th day of flower i have givin it nothing but tap water and a couple doses of recharge to liven up the soil

So, I was having the exact same problem, and the reason was an anaerobic bacteria screwing with my pH causing lockout. Testing my runoff confirmed it. I JUST started adding Hydroguard to my next run because it was ALSO starting showing the same signs.