There is mold growing on the root running on the outside of my orchid plant. I don't know what could be on the inside of the pot. I recently moved it to a dryer spot where it doesn't get as much water. Is this bad for the plant? Will it dry up on it's own? Should I get the plant out of the pot and re-potted or is there something I can treat it with. The plant seems to be doing pretty good.