Hi Mclnky,
The first thing I would do. is check real close and rule out a bug problem, a jewlers Loupe helps a lot.
Those spots look most like either Nutrient issues, or possibly Nutrients/ water that spilled on the leaves and burned them.
That city water is bad for them with the chlorine. You can keep a couple jugs with the tops off handy, which you just leave sit for a day to let the chlorine burn off.
I had to start doing this when I was on town water. Then I got to wondering. If the chlorine is bad for the plants, what about me? I started filtering all my water with a Katadyn filter, and within two weeks, all the headaches I was having, got WAY better. The terrible stomach aches I had nearly went away.
I looked up the Kellogs, and doesn't look to bad from what they say. Though no telling what might be in the "Post consumer wood scraps, and orchard waste" as far a pesticides.
Miracle Grow didn't say what was in there soil, and I'e always been inclined not to trust there products, especially for growing medicine.
I grow organically in soil, and have great results feeding my plants about an inch of worm castings on top of the soil every couple weeks, whenever they look hungry. Side dressing with a very small amount of Bat Guano in vedge, and again at the start of flowering, seems to be really good for producing buds, and mine seem to really like it. Once in a while I give them some fish emulsion during vedge, or a little composted manure early on.