Q.Plant Mold?
I have a lot of houseplants and I recently started getting a heavy white sticky substance on them. It started on my aloe vera and has moved to many of my other ones, but it is still heaviest on the aloe vera. What is it, and what is the best way to get rid of it?

Certified GKH Gardening Expert
Sounds like your plant may be affected by mealybugs. Treat with neem oil.
These articles will also help:
https://www.gardeningknowhow.com/plant-problems/pests/mealybugs-white-residue-on-plants-leaves.htm
https://www.gardeningknowhow.com/plant-problems/pests/pesticides/neem-oil-uses.htm