No I avoided extended release, but I bought a bundle of Pro-Mix BX. This soil dosent have extended release nutrients but does have some sort of bio additive.
Checked the Marley this morning and it seems to be recovering.
Did a PPK test on BX, everything in excellent ranges except nitrogen which was a little low, I wanted this because of the additives Im using.
Im watering every other day, none of other plants are exibiting symptoms, dont want to increase my program, I will just pay closer attention to this particular plant.