Hitchhiker ID Help

[drebay]

Hi all! First post here.
A bit of background. I’ve been out of the hobby for about 20 years and have been slowly setting up my main DT. The only LFS in town went out of business and I couldn’t resist the fire sale. So I hastily setup a desktop tank about a month ago. It happened fast so I wasn’t prepared with any dip for the frags. Been scrolling through here and other sites, but still not sure of ID. They are out when lights are on, though retract when disturbed and seem to be multiplying. Thanks in advance for any help/advice. Sorta leaning towards some type of worm?

 

[Cell]

Micro brittle star

 

[A Young Reefer]

Micro brittle star

+1, They eat left over food and they are pretty hardy. good cuc.

 

[drebay]

Awesome thanks. I was confused because they haven’t moved from the frags. But I’m reading now this isn’t uncommon. These with stomatella means I got good freebies (knocks on wood).

Happy to have found this awesome and informative community as I get back into things.

 

[WheatToast]

+1, They eat left over food and they are pretty hardy. good cuc.

+1 They are prolific breeders as well (as OP mentioned).