HELP! What is going down? Leaves green but curling!

[DJsublimeATLinCO]

Alright guys, my plants are 2.5 weeks into veg and I have some leaves that are curling. I'm growing in pro mix, using advanced nutrients (hobbyist line) and botanicare cal mag and pure blend tea. I'm folier spraying silica and big tyme (russet mites are prevelant in CO). Temp hovers around 85 when the lights are on and the humidity just will not get over 25-30% and stays between 18-22%.
They are in 2 gallon pots and will be transplanted into 5gal.

From my research it is either a boron deficiency, ph issue or a lack of humidity and/or overwatering.

Im watering on a feed water feed Schedule and am waiting every other day until the pot seems light and the top 1-2 inches feels dry.

Any help or suggestions is is greatly appreciated!!

[D.A.A.S.69]

Hey DJ, I ain't a plant doctor by no means but I would say either root problems or your PH .
Have you checked your runoff ph?

[DJsublimeATLinCO]

Oh runoff is 5.8-6.1

[D.A.A.S.69]

Your runoff is not to bad, I think GWE says to keep it between 6.0-7.0, .I don't see how it could be overwatering, cause you know how to water a plant. If the pot is lite you water her, hard to overwater if your picking up the pots. Could be a little heat or humidity like you said.

[Madman960]

Type and Watts of lights, height above canopy, nutrient line? I'm not a plant doctor either. I was going to suggest over feeding or heat stress.

Happy growing.

Madman

[DJsublimeATLinCO]

4x1k watt MH bulbs about 2.5 feet off of canopy.

[Madman960]

I'm going to guess hear stress. How is your airflow around the plants?

Happy growing.

Madman