Leaf Stress - long time no see BTW

[Gjourney101]

This plant has been explosive - literally. Only 1 1/2 weeks in and I already topped on the 4th node and my new branches on the 2nd node - extremely well fed genetics it seems as this is the same offspring I used with iffy results last year. Anyways...

I'm having a big problem with either temperature, humidity, (definitely can't be the light intensity- you could buy this for a buck and a quarter and I'd still owe ya 10 cents), or wind possibly.

I've ran into this problem before, but it faded quickly and left no worry. Now, with this plants growth rate and health, I know this is a constant problem.

I'd like help diagnosing if you guys have any opinions- I'll leave you with this info:

- Root Zone Temp (~76 F)
- Leaf Surface (~80 F)
- Mid Space (~82 F)

I've been having a tough time with temperature control, but I know it hasn't broke 85 or below 63 thus far.

Anyways, the lower leaves are taking the hit and the newer nodes seem happy actually.

Point me in a direction and I'll go there. Thanks guys.

I don't apologize for the Blurple either (I'm gonna set this light on fire for all of us in a few weeks).

[Gjourney101]

Here's a happy photo for the trouble.

[Bluey]

I'd be checking pH in first. I wouldn't be using bloom nutes yet.

The leaf curl could be a first sign of nute burn indicating the soil is a fraction too hot assuming temps are fine. They should grow out of that with a bit of overwatering help.

You'll need to get your environment right moving forwards.