SOIL upper leaves dropping down

[nextpablo420]

I have 2 Auto big devil xl, 6 week old
1st week of flowering
They are doing good
I can see lots of small buds

But one of my plant have some issue(other is doing good), its upper leaves are dropping down ,please help.

[dphipps1020]

I have one doing this too, out of 10. It's been doing it since basically the beginning and I still can't figure out why. At first I thought it was too hot but it was still doing it at cooler temperatures. Then I thought over watered so I let it dry up a bit, then maybe under watered. None of that was the issue. So I'm chalking it up to genetics. Maybe I'm wrong and it just needs colder temperatures than I can give? I'm sure the answer is out there somewhere, hope you find it. I'm curious myself.

[Toker1]

Typically this is a sign of overwatering. If you are already letting the soil dry out properly, try less volume of water.

[nextpablo420]

I didn't have water my plants for last 2 days
Soil is dry from upper side,
But still no sign of recovery, its getting worst,
At first i thought its a wind burn, then i slow down fan
Then i thought its N toxicity and over watering
So i m not using any more nutrients and m trying to dry out soil,
But no sign of recovery

[dphipps1020]

Toker1 I have tried that as well, just a little at a time. Is humidity a possibility? I keep the flaps open when the light is on, for the most part. But initially when I open them a burst of warm, moist air hits me in the face. About the only other thing I can think of. Probably mostly because of the hydro going on and partially because there's quite a few big ladies in there. I hope I get a few seeds I'd like to try that one again and see what happens.

[Toker1]

And you are adding perlite to the FF soil as well?

[dphipps1020]

No but I never had this issue before so I didn't think about it

[Toker1]

Some strains are more picky than others. Also, Different seasons create different ambient RH. There are many factors, drainage may be affected by them. Try mixing in perlite with the FF soil. You can do up to 40% perlite and 60% soil to improve the drainage for next grow. For now I would poke air holes into the soil. Try and get down as far as possible. This will improve the drainage for this grow. You may have to do this after every watering for this grow. Hopefully you will see some improvements.

[nextpablo420]

Here are todays pics

[Sudsnbuds]

They might need calcium