8th week of flowering leaving drooping and curling under!

So I'm in my 8th week of flowering. I have 4 plants in soil started from bagseed.
I'm using ff nutes and soil. I havent used anything but filtered ph'ed water for about 2 weeks now...
Their under a 150w hps light.. and i have 2 intake and 1 exhaust fast.. also another fan blowing on the light and another blowing on the plants..
I had problems with my other plants doing "the claw" from using too much nutes but I dropped the amount of nutes I was using a while ago.. so I'm not sure why my other plant is showing the same signs.. Their all in 3 gallon buckets and I'm afraid they might be root locked.. but what can I do if I'm so far into flowering?? And btw I always wait until the top of the soil is dried a little until I water again.. usually like 5-6 days between each watering..

Let me know if I missed any info..

i will be awaiting responses as well. i just noticed this happening today. i can say this....its only happening with my lesser quality genetics. i think its from heat stress. i recently added another 400w and its not air cooled. its staying around 88 in there now. im pretty sure thats the problem. they look just like yours!

don't have much insight on your plants sorry, but cute toes

lmao! great attention to detail. i had to go back to look, very funny stuff.

ahhaha very cute toes but yeah i got nothing etheir but like rzza said i herd it was from heat stress and i think ive herd over watering.... but then again not sure

They look under watered, more light, and switch to less nutes and more water. Also use 1 tbsp black strap unsuphered molasses dissolved into 1 gal of water. (this will help get things cooking in the soil to make more usable nutrients from whats there without exposing them to more salts and metals which cause damage) 150w for 4 plants of such height is not enough. You should add some CFL side lighting at least another 4 bulbs around 1 on each side of the square. That should help. What are ur temps?

LOL

my temps are usually between 80-85 during the day, and ill be putting in more lights in tomorrow, thanks