I filled 6 small plastic pots with used potting soil. I watered the soil and let them dry to eliminate air pockets before I plant the baby spider plants that have formed on my plant. My concern is a growth almost like a thick spider web that has formed on top of my potting soil. I\'m thinking its a fungus and my used soil needs to be sterilized . Hoping this is something that I can fix with your help. Thanx Matt
Matt - For indoor potted plants, it is never a good idea to re-use potting soil and never a good idea to use garden soil. Indoor potting mixes should have only peat moss, coir, and perlite as ingredients. Otherwise, you may get various contaminants such as fungi and fungus gnats that you do not want indoors.
When potting, dampen the potting mix first and then go ahead and put it in the pots. Once the plants are in the pots, then water slowly and thoroughly.