I got some paper disks with pre-embedded arugula seeds and planted them in a box on my windowsill. They sprouted within a couple of days, but today when I checked them for the first time in bright light I saw that they had a little white fuzz growing on them. At first I thought it might be wisps of decomposing paper, but no, it's pretty clearly a fungus.
Can my seedlings be salvaged? I refrained from watering this morning and placed the box in a sunnier spot. Is there anything else I can do to help these little guys?