Do you know how humid your grow space is? That sort of thing needs humidity to grow.
Check the ;unwanted mushrooms in pots' thread for a great discussion on soil fungus.
stinkyattic Reviewed by stinkyattic on . fungal infection! hi y'all my soil has a fungal growth on the top after watering,it looks like a very fine spider's web.this is only on the soil not on the plants,and grows on all the pots in the grow room.anyone know what it is??,and will it affect my plants!(i'm in an attic i that makes any difference) Rating: 5