I just googled hydroids and come up with some nice pics of hydroids. I think I stand corrected and believe what you have are actually hydroids. I thought for the longst time they were just small genertic dusters. Oh wel!!!
That is not impossible Kate they could be. I should of asked 'how big are these" I thought about stkicks and then said no. They only grow on the tubes of the worm Eunice tibiana. Maybe Dobe will have more to add.
Then Kelli I would say hydroids. There are some really tiny tube worms like these but I just do not see the structure in your pics at all of being dusters, even if I blow up the pic 500%