Well I talked to some other people who think it may be an algae bloom from the vitamin c dosing.
I did a big feeding last night using my homemade food, I fed most of my polyps with the flow and skimmer off for 2 hours. I turned the skimmer back on (and the flow), dosed 5ppm vit c, then went to bed.
I just did a ~21 gallon water change and things look slightly less cloudy.
Overall things look happy, in fact, a few corals look better than they ever have.
Im pumping some more water and will probably do another water change later on if I have time.