Hello everyone. First time I am posting here. I just got my green thumb this year and needless to say I may have over done it. I am currently growing tomatoes, zucchini, yellow squash, bell peppers and cucumbers indoors. Up until the past couple of weeks everything was fine. I am currently dealing with fungus gnats and some type of either disease or pest. I have tried hydrogen peroxide mix for the larvae and sticky traps for the adults. Seems to work great until I have to water again. I only water once per week. Yesterday I noticed some thin spots on some leaves and yellowing around the edges. The plants look wilted as well. Could this be dampening off? Also upon removing the drain cap for the pot I saw these tiny white bugs. Can barely see with the naked eye and I had to zoom in with my camera to get a decent look at them. What could they be? Are they harmful? Should I worry? Thanks and any advice is greatly appreciated.