Heat stress/light stress?

[Streetdoctor3]

Does this look like heat stress/light stress? Thermostat set at 80
Thermometer in middle of room says 82
Canopy goes around 84-87
Lights are 36 inches above the canopy
1000w de HPS
Running 1200 ppm co2

 

[curious2garden]

No, now do a search on K deficiency in cannabis

 

[Budzbuddha]

Been seeing a lot of this lately here .....
Yellow edges leading to a burned tip / necrosis

 

[Budzbuddha]

No, now do a search on K deficiency in cannabis

Beat me to it ... lol

 

[curious2garden]

Been seeing a lot of this lately here .....
Yellow edges leading to a burned tip / necrosis

View attachment 4821687

You're too kind, you did his search for him

 

[Streetdoctor3]

Thank you I Thoguht it might be light burn because I moved my lights closer to the canopy