Weird brown/black spots on yellowing leaves.

smokeybeard

Well-Known Member
I am honestly not sure what this is, I have been fighting with it for a couple weeks now and I don't know what it is. Any help is appreciated.

250w quantum board, 18" front light to canopy.
Organic "super soil" I made
Mostly water, have given 1 AACT with guano, liquid kelp, high brix molasses and some of the soil I made. Cal-Mag added at 5ml per gallon. PH'd to in between 6.4-6.8.
This happened before I gave my first AACT.

It is only happening on 1 of the 2 plants I have, both Raspberry Diesel from HSO, from seed. The leaves are on the bottom after I pruned below what I thought would be best light penetration.
 

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