Pothos indoor plant.
I watered my pothos plant. The next day it looked like yeast in the pot bottom. It has a smell like wet yeast. I moved the plant outside. I have had pothos for quite some time and have never seen anything like this. Any ideas?
It most certainly could be yeast. This is usually not a problem. Do you collect your water from a source which could be carrying the bacteria? An A/C condensation pipe would be high in bacterial yeast, as can be a kitchen near cooking equipment.
Fortunately, this is able to be cured. Just add wettable sulfur to the soil, and spray with neem oil.
Here is an article for more information on the care on this plant: https://www.gardeningknowhow.com/houseplants/pothos/pothos-plant-care.htm