Seedlings 1 week old approx., Leaf tips curling upward + growing funnyish

Hi everyone, my seedlings are going well for how long they've been planted for I think, but now on some of my seedlings the tips of the leaves are curling upward and looking almost like they are shriveling up, but not really sickly looking at all. On one it's pretty severe, the leaves are just curling like crazy and sort of warping (not straight) and now some of the others are following suit. They just look like slightly bent leaves and not straight like they should be, it almost seems like maybe the humidity is not high enough, can anyone confirm this? Here are the growing conditions.




1000w MH, 2.5 feet above plants

Plants watered every 3 days or so, not too much though (don't think it's overwatering)

Temps are I think about 85f, 29 celcius (could this be the cause)

and also my humidity, sadly, is only around 20-30%. Maybe those 2 factors?


Please let me know if any of this makes sense and what I can do to fix it. If you need pics i can get some for you.

Thanks so much for your help.

Yeah some plants are really touchy about getting over 85. Ive had that cause problems..You need to get your ventilation system going a bit better
Also the humidity, same thing. Im really dry where Im at so I have a humidifier in both my grow rooms. I can keep it around 40-50% RH. 30% RH should be ok though
You kinda have to solve the problems to find the solution.
Oh and is it a soil grow? if so what kind
I have had time release soil do that to plants.

id try to get the temp a tad bit lower then 85, do u have any fan(s) in ur setup?

pics would help alot

Yep I do have 2 fans. I just went out tonight and bought a humidifier, can get the humidity to atleast 50, and I have solved the temp problem with a vent type thing in my window, which allows the cold winter air in to equalize the temp. Thanks for your replies guys, I'll let you know if this fixes them.

Calijuana said:

Yep I do have 2 fans. I just went out tonight and bought a humidifier, can get the humidity to atleast 50, and I have solved the temp problem with a vent type thing in my window, which allows the cold winter air in to equalize the temp. Thanks for your replies guys, I'll let you know if this fixes them.

Click to expand...

if u don't already got a screen for your window, put a screen/filter in your "thingy" so no bugs or anything get in

^good call
Before flowering or all the bugs will smell your stinky ladies from a mile away and come runnin