need help bad droop a few hrs before lights out

OK so this is my first soulless grow while I have been growing for a bit I dnt think I have ever had this problem. R new ppls tht have my setup is 11 1503 of plants in a 4*4*7 tent 1000w mh air cool with 8inch Max fan for exhaust and a 4 inch for in take temps 75-80 lights on 65-68 lights out I'm running pbp grow liquid karma and superthrive ph 6.35 going in 6.41 runoff sunshine#4 advanced for medium my problem is my leaves droop a few hrs b4 lights out its a serious droop and leaves r light green only close to lights out growth is normal roots r growing krazy oh and my first bale of ss#4. Wass old ph was really low high5's I amended it with dolomite power lime p.h now on the money this was 2weeks ago

Do you have any pictures? It is hard for me to figure out the problem without pictures. BUT, a tell tale sign of droopy leaves could be a sign of over watering. How often do you water? Do you let the medium dry a bit in between waterings? Is it constantly wet to touch? What is your Humidity at in your room ? If you post pictures, I will be glad to help you out for real...as right now I am just speculating.

On a side note, For soiless mix, I suggest flushing your soiless mix with water ph'd to 5.8. Continue feeding nutes at 5.8 ph.

Your plants are just going to sleep, assuming the are perked back up in the morning. I assume your lights are also intense/close. Some strains really hit the days limit faster then others. Remember a lot of people growing indoors keep the lights on longer then the plants were breed to be in the light cycle before going to sleep (dark cycle)

OK thks guys my humidity is low 20-30% I doubt over watering I only water when soil is dry. Very lite

View attachment 2534417as lights come on nice perk

a few HR into cycle

I'll post the drooping pick in early a.m my light cycle is opposite natural so maybe 9am p.t

3 I have in a different room/house no droop the one tall Tahoe og mother 24 HR light floros smfh idk same strain 4*54w t12 tubes temps 75-80 as well but ffof soil

oh yeah those look fine

looks pretty good.. just a little clawing though i would back off on the nutes just a little before something worse happens

Thk all first the slight tip curl was a p.h thing from the first bad batch of ss#4 its never went str8 new growth no tip curl and I do notice a slight droop after water but it only last a HR r two and I always water right after lights on I think I got it down to cold around my medium I'll keep everybody posted and again Thk all the pro's for ur for all the good input

My worries aren't over so plz continue to follow my post all input on my type of problem it's not a lot of answers to my question on the web so let's help future cultivaters

@ lightsout the dread mystery droop

Tht pic is 5min b4 lightsout

Raise the light . The 1000w is causing the droop and the bleaching of some of them.

I think u were on point buds the m.h bulb was brand spanking new I raised it another ft it helped but they still droop but a light droop and I found tht its best to water my mix at it halfway point between heavy and light not bone dry ill post pics today of the improvement

new pics

Those look great now. I have the same droop happen if I wait too long between watering, fix that by watering a tad sooner(In my experience).
I haven't had any stress related problems due the the droop either fyi and my current crop is on week 5 of flower.

Thks bro yea I think my droop came from a combo of the light being to strong and to long a wait between waterings I chalk it to learning i just changed to soiless it a new but appreciated change Im a Month a half in veg I plan on starting flower in two weeks I picked up sum bud blood I'm not to into advanced nutes but thought I'll try it