I just planted some seeds this last Thursday in soil that is in paper egg cartons that are kept in an aluminum foil cinnamon roll sheet that has a clear plastic lid over it like a plastic greenhouse, and have been keeping them in the oven that has a pilot light on all the time, and I just looked at them to see if they need water and seen this light gray and fluffy stuff growing on the soil, should I pet it? kill it? or start over again using some other method?