Just had to add that was great the way you saw those spots early, alot of people call me when the plant is almost dead, "what do I do" and at that point it is kind of like well let it continue or tear it down, but half its life or half its harvest is gone.
catching things early is the whole point of indoor gardening everything should be like a lab any little change should be noticed and noted and dealt with. Recording is all part of growing, how elese are you going to know 4-10 years down the line if bubble gum and bubba kush need to be grown differantly? Or if in wet seasons planting at low elevation can be bad lol.