first time growing need help not sure why the leaves are curling upwards

Hobbes

Hobbes

Well-Known Member
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Looks like heat or light stress. What are your temps and how far above the canopy is your light? How many true watts from your light?

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G

GODSAIYAN420

Member
Hobbes said:
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Looks like heat or light stress. What are your temps and how far above the canopy is your light? How many true watts from your light?

.
Click to expand...
got 2 2000wat leds in a 4x8 tent and the temps are 27-30 and 57-60 the lights are about 2feet away maybe a bit more
 
mindriot

mindriot

Well-Known Member
GODSAIYAN420 said:
got 2 2000wat leds in a 4x8 tent and the temps are 27-30 and 57-60 the lights are about 2feet away maybe a bit more
Click to expand...
get yourself one of those cheap infrared temp guns, check the leaf temps under the light.. if the room is 30 C degrees.. what is that, 85 F? The temp of the leaves under the light are going to be higher. They will taco under heat stress, especially in a lower humidity environment.
 
G

GODSAIYAN420

Member
mindriot said:
get yourself one of those cheap infrared temp guns, check the leaf temps under the light.. if the room is 30 C degrees.. what is that, 85 F? The temp of the leaves under the light are going to be higher. They will taco under heat stress, especially in a lower humidity environment.
Click to expand...
okay i actually have one so im gonna go do that now thank you ill be back in a few mins with the readings
 
twentyeight.threefive

twentyeight.threefive

Well-Known Member
In a 4x8 tent you should be aiming for at least 1120 watts of quality LED light or 1600 watts of the kind you're running.
35w per square foot of good LED light or 50w per square foot of lesser quality lights.
 
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