Tiny orange ish worms?

[Jhead85]

This is the second time I've noticed tiny orange ish worms swimming around very fast when the lights went out..also a few of them were black or dark blue... Easily 20 or so..I've sucked as many as I could get and now I see one here and there but this is the second time I've saw this happening... Any ideas fellows

[Jhead85]

Videohttps://vimeo.com/111385313

[Origami]

They look like mysids. Perfectly normal.

http://www.reefkeeping.com/issues/2004-02/rs/

[Jhead85]

They look like fast swimming worms then a shrimp

[lutz123]

Hard to tell on the video to even make a guess. Free swimming and not crawling? The the chucks addiction hitchhikers page.

[Origami]

If you've got a few in a cup, You could nuking a few to get a closer look. I see little stuff swimming around in the tank - especially at night. Mysids, larva, other zooplankton. It's really hard to tell with your video - they look like little gray-white dots jetting about. Some looked like they were flexing in the middle.

[Sugar Magnolia]

Epitokes is another possibility.