Tiny black bugs

I have a micro grow going on, 2 little plants, I put one of them in a container in case it leaked when i watered it, and the next day i look in that container, there are a bunch of tiny tiny bugs crawling around, they kind of look like super tiny short centipedes, completely black, and they do these little jumps sometimes... I have no idea what they could be they dont fit the description of any bug ive read about on any thread.. My plant looks amazing so far however.. I'm thinking i should keep some in a jar and see what they turn into if theyre just larvae right now... anyway any help is appreciated.. thanks