What are these little things?

[Levinson]

I was looking through USB microscope and found these little things moving about, smaller than smaller copepods.
Does anyone have any idea what they could be?

Just in case the video attached doesn't work. Here are alternative links to the same video.
Video1
Video2

 

[Tuan’s Reef]

Looks like copepods to me. They come in microscopic sizes as well.

 

[Levinson]

Looks like copepods to me. They come in microscopic sizes as well.

It'd be awesome if that's the case. Could they be copepod nauplii?

 

[bushdoc]

With an exception of the large one in second video, those are not copepods, but Ostracods, different group, but similar ecological niche.

 

[Levinson]

With an exception ot large one in second video, those are not copepods, but Ostracods Different group, but similar ecological niche.

I think you are right! Thank you