Any help would be appreciated here. I am a first time pepper grower, and up till now everything has been growing great. I know the plants are a bit crowded, but I have a bunch of peppers growing already, and in general the plant looks healthy. The plants are still flowing and starting new peppers, but in the last couple of days I have been getting a massive outbreak of yellow/white spots on my leaves. I had no luck matching this with anything online. Here are some pictures:

As a little background, the plants are in miracle grow moisture control potting soil. I have some tomato fertilizer that I have supplemented with a bit now that they have been growing a couple of months. I may be over watering them a little bit since I basically water them when i water my tomatoes, so that could be the yellow leaves on the bottom. I do see some green mite like creatures on the plant, which I have been spraying and smashing. They are bigger then any mite I have seen before in adult stages, and I am not really sure what they are. I don't think they are causing the spots though, since the spots are much more widespread then the insects have ever been. There are also a lot of what sound like fungus gnats in the soil, and occasionally on the plant leaves.

I appreciate any help identifying what the problem is.