Yup. High-brix soil. Promix HP with 30lbs EWC and 1st run amendment, cooked 40 days. What could cause the discoloration of the old growth? Anything concerning?
Noted. Transplant when she dries out.
Assuming the soil was mixed well----and it probably was---we could be looking at some sort of pathogen. But that's a guess and not likely. A great big pot of nice new soil will make all the difference now that there are roots.
BTW, you're storing the bin at room temp, correct?