Sour Diesel IGLM
Happy Frog, perlite, lime, powder stump tea bacteria
Runoff 2 plants: 1100 1311
Measured DLI = 24.2, Lux =16999, PPFD 326 New Phototon app
Indoor, 4X4 tent w/ SF4000 2020 version
Temps: Day 77-78, night 77-78
Rh 65% with humidifier
Ventilation: goes outside. 6 inch ACxfinity. Passive intake
House is central air conditioned to 69 deg
Started in veg tent under T5 then moved to LED. At around 2-3 weeks in the pics. I only used water once thus far, will water tomorrow again with water and maybe a little cal-mag. lol. LED is at 55% after starting at 50%. Height was 24 inches at start. Moved up to 30 now.
@Nicky@JWhistler Helps with LST. I’ll have the top of the plant on the other side at one point before it turns up. I tried it once on one plant and it worked great for an auto. Which I forgot to mention, lol.
After 2 weeks I observed brown spots on the bottom leaf. You can see them here. I’ve been trying to diagnose. lol.
I only used water once thus far. Nothing else added.
Soil has lime and bacteria added and some perlite.
I wouldn’t change a thing until I saw it affect another area. Probably just water got on the leaf(from watering) causing it to burn under the light. Keep an eye on it, it wont get any better, just make sure that you aren’t getting more in other places.
Happy frog is already balanced with lime. Which is why I only add up to ~10% perlite to my happy frog when I use soil. Otherwise I risk throwing the balance out. Which what I see here is a pH issue. Overtime if you control input pH it should rectify itself. No promises. Just read/understand what is in your store bought super soil before playing around with it in the future.
If you want to know more as to why. Look into vpd. She’s kind of suffocating at those numbers.
Another edit. The easy way I like to look at it. The closer I get to 65% humidity, I better be close to 65°F. Otherwise if I’m pushing my low 80s like I like to. My Rh better be around 45-55…
I understand it’s confusing how that works. But think of a reverse see saw.
What’s bad is I’m revealing a very obvious curve that is missed by every single vpd table/chart I’ve seen and many I shared in the past. So I shared misinformation. Of course there is no mapping of my findings. I ain’t been with it.