Should i turn up the light

thc2022

thc2022

Member
I have been edging up my light slowly. The last increase was Sunday.
Can anyone tell me if these leaves are showing stress? The points in the leaves look erect. The other strain (middle image) i have growing doesnt show this.


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Dr.Amber Trichome

Dr.Amber Trichome

Well-Known Member
Give me some measurement from the top of the canopy to the light but I would say yes, it looks like heat stress. Dry looking leaves. Move the light up.
 
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twentyeight.threefive

twentyeight.threefive

Well-Known Member
Budzbuddha

Budzbuddha

Well-Known Member
What your temps ? ….
‘What medium are you running ( soil or coco or ? )

Give us more details of grow - pretty sure it is not light stress ( which will affect upper leaf / pigmentation / bleaching )
Believe it’s something else….. I wouldn’t mash the gas anyways on a sad plant .
 
thc2022

thc2022

Member
Budzbuddha said:
What your temps ? ….
‘What medium are you running ( soil or coco or ? )

Give us more details of grow - pretty sure it is not light stress ( which will affect upper leaf / pigmentation / bleaching )
Believe it’s something else….. I wouldn’t mash the gas anyways on a sad plant .
Click to expand...
temps are good. Night 65-70 day 74-76 RH 58
live organic soil, no added nutes. Well i did add some seaweed a few weeks back in one of the waters.
I did change the light Day 27, now Day 49.
The sister of that strain isnt as bad but shows it. The Kush doesnt have this issue.
 
HydoDan

HydoDan

Well-Known Member
Temps are good so it must be from the light. Leaf margins shouldn't be rippled like that.
Middle pic has some N tox. leaf curl. Have you checked the underside of leaves for pests?
I don't see any obvious pest damage, but you never know.
 
thc2022

thc2022

Member
HydoDan said:
Temps are good so it must be from the light. Leaf margins shouldn't be rippled like that.
Middle pic has some N tox. leaf curl. Have you checked the underside of leaves for pests?
I don't see any obvious pest damage, but you never know.
Click to expand...
Yeah i think its a combination of things. This is my first grow, i had a SF4000 and stuggled like hell with heat at the first 3 weeks. I then changed ti the HLG and its a game changer, no more heat issues, RH is dialled in and manged by inkbird controller along with my controller on the tent adjusting the inlet and outlet fans for temp. I am actually really chuffed with the setup now but wonder if these are stressed from the jounrey so far along with my wanting to crank up the Watts to get fat buds!!
I thin the N tox leaf curl was a result of the seaweed feed. My soil doesnt need feeds but i didnt read that until after. i got excited and wanted to feed them.
That said im not experienced. would the leaf curl still be there given that seaweed feed was 3 weeks ago.
There is a chance that the soil is too much for the strain of cannabis. Aparently that could be an issue. I guess you have less control of the nutes so you have to hope the plant likes whats on offer.
 
HydoDan

HydoDan

Well-Known Member
Ok, that makes sense. Heat stress rather than light stress. I would say your soil was a little N heavy. Burnt tips and dark green older leaves. Not really too bad for a first grow.
 
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