Unknown problem

[Growdank520]

Temp and humidity are in check, ph in check, no bugs or anything visible, light is on point, does this curling look familiar to Anyone?

 

[DoubleAtotheRON]

Looks like heat stress, or beginnings of light burn.... but with just an "in check'.. hard to say.

 

[go go kid]

i second that, first thaughts were heat stress also. some plants prefer a cooler temprature

 

[jcdws602]

But he said check guys so..........lol jk. It certainly does look like heat stress. Is it mainly on the upper foliage??

 

[Growdank520]

temps are 82f and 60% rh, running around 600 ppfd with leds. The curls can be found on the lowers as well, plants next to it are fine

 

[FastFreddi]

temps are 82f and 60% rh, running around 600 ppfd with leds. The curls can be found on the lowers as well, plants next to it are fine

Ph? In check?
FF

 

[Growdank520]

5.8 in coco in veg

 

[FastFreddi]

5.8 in coco in veg

Try upping it to 6.0 or 6.1...see if they improve.
FF