3 questions:What are those black things, how do I get rid of them and are my other plants (mainly orchids) in danger?

My drosera capensis is struggling lately. I recently cut any leaf that was dead or brownish, hoping it would recover (although I still need to get a growth light for it). When I cut the dead leafes I noticed the black dots. I have no clue what they are since they are very small and don't seem to move. If they are some type of lice I'm also worried about my other plants. I don't have any other carnivorous plants, but a lot of orchids and some other stuff. Are they in danger as well?

I'm thankful for any advice!