Tiny red slugs

[yOyOYoo]

Can I get an identification on these tiny little red slugs? They appear very small about 20 microns in size. You can see in the photos and videos attached there are some tisbe copepods for size comparison, which are about 50 to 100 microns in size I believe. These red things do not look like flatworms to me.

 

[Reef Jedi]

Interesting, they almost move like a flat worm. I’m not sure tho, following to learn from others.

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