Some type of worm?

[Doob]

Just spotted these guys around the wet side of the Vortec. 3-4mm long, fast moving.

Looks like they have antenna, very hard to see though.

I have seeded the tank with tiger pods, I thought unsuccessfully, these seem way too though.

 

[Tahoe61]

Sorry I can not make out the ID.

Most likely zooplankton types such as amphipods.

 

[Roboson]

Too small to see in the photo. It's likely they're some kind of pod. Don't worry about them unless they start reaching plague numbers.