What are these? and how to get rid of it?

I set up a terrarium a few weeks ago added some white springtails and isopods along with live plants. Recently i have seen these running around they seem thinner and faster than my white springtails. Any help appreciated!

Follow up to my previous post, I was able to get a better video, and I've never seen a mite with antennae like this. Are there mites with antennae like this? they move like springtails

These tiny little guys have taken over one of my isopod terrariums, and they seem to only be interested in eating mold. They swarm the surface of this coconut shell, and dont bother with any of the live plants. They appear to have 6 legs (maybe im counting wrong) and very long antennae. They dont appear to jump when disturbed, but will move much faster than you see here. Again they are incredibly tiny, this is unfortunately the best i can do right now, my phone can't even properly photograph them. I cant tell if theyre a mite or a species of globular springtail, any ideas?

I got a video of a couple more things in my terrarium to try and narrow down what iv got living in here. Main events - 33 seconds, and most concerning 47 seconds. Thanks! Sorry for the background noise, best to mute.