Weird stuff on seedling site

I just planted 7 mazar autos 2 days ago after a 24 hour soak. I watered this stuff (Miracle gro seed starting soil) and put under heat register. I find this weblike silver silk like material on top of 1 of the sites. I think ive seen it before and cleared it out. If its beneficial i want to leave it
 

Attachments

  • 20201209_191734.jpg
    20201209_191734.jpg
    375.9 KB · Views: 22
  • 20201209_191657.jpg
    20201209_191657.jpg
    654 KB · Views: 22
Back
Top