Bugs in nursery potting media - are all bugs bad?

[Papillon24601]

I've seen some itty bitty bugs in my new orchids that came from nurseries. They might be silver fish? But I never saw silver fish so small. At least one minuscule spider. There aren't any on the plants. The ones that have new growth, I potted; the ones that had blooms and no new growth are still in original media. When I saw the bugs, I dunked the whole pot (roots and all) in hydrogen peroxide and the rinsed then in lysterine. Should I be worried? Did I do the right thing? Do orchids ever arrive with beneficial bugs?