MM recommends nothing smaller then 400 micron screening.
There is a learning curve to organics, and that soil really is not helping you. It is possible to crumble/wash the soil off the plants and repot. You have to be really careful. I have only done this in extreme situations, but I have done it, and it did work. Imo organic growing is all about the humus in the soil (which light warrior has pretty much none if I remember correctly). Hi quality EWC, vermicompost, or even thermal compost will help substantially. Keep reading, it will make sense eventually.
Have you done any foliars?
P-