I have had this plant for almost two years and it has never grown as well as my two other fiddleleafs. It is in my dining room in an east facing window and I water about once a week. I usually water until the top of the soil looks completely moist. I use a very weak fertilizer about every other watering. I have figured out several things I need to change from the video, but my main question is should I cover the exposed roots with soil when I replant?  They were exposed when I bought the plant and I tried to cover them initially when it went into this larger pot. I plan to repot into a pot with better drainage ( although this pot has a drainage hole) and move to a southern facing window. Do I try to cover the exposed roots?  Thank you for your help.