see above. just noticed this while watering my seedlings. (taken with a USB microscope FYI) they looked like aphids at first so i was pinching them until i got a closer look, almost looks like rock candy to a degree. just on my maules red hots.
potting soil i used was a mix of black gold potting soil + black gold seedling mix + worm castings i had made over the winter. not in any particular concentration either.