Reddish Brown Leaves and Sugar Leaves? Cold maybe

[Hammerhead]

Set up a blower to pipe the heat into the tent. No space heater in the tent. Add a temp controller on the blower set that to 80-85f when growing under led.

 

[EastCoastGambit]

This is the setup. Have two PC type fans on the ground and an oscillating in the corner.

 

[goingrey]

Electric radiator outside the tent next to the intake vent works well.

But this winter I'm trying to avoid using it with cold resistant strains and an appreciation of purple hues.

 

[EastCoastGambit]

Better safe than sorry. I'll move the heater outside to near my filtered intake box and see how that goes. Less efficient but more safe. Some type of radiant h2o piped heat on the floor of the tent would actually be ideal for small grows.

 

[EastCoastGambit]

I thought low temps are part of the issue with nutrient/light uptake with LED. Something to do with transpiration