My son went to remove an old potato and there was mold on it and some of the oats. He picked out as much of it as he could. What should I do?
If he picked out as much as he could....it's the end. Don't stress. Just check the potato you put in more often and if it's too large a slice, they have more trouble getting the water out of it. I find larger SURFACE AREA is better than one big chunk. The more surface area (slices) the more worms can attach and feed. Have fun!