FoxCrowanswered grow question 5 years ago Thnx guys,
Im pretty sure it is not woodlouse/sow bug.
I think in might be springtails as Highroller909 described..
I dont know how big they get, but those guys are nearly invisible to the naked eye. You have to come quite close to be able to see them move...
Also, cant it be thrips in an early life stage?