I took out the bottom tray to my red false banana, and found this white stuff. If it is fungus, do I need to be concerned about the roots? I was concerned about root rot already, but I'm new to plants so don't quite know how to identify it. I uncovered the roots closest to the surface and they seemed healthy enough (white in color, not squishy), but haven't checked on the ones further down. Although some of the roots growing out the bottom were covered in this.
