Pls help ID worm-like thing

[Milch_Tan]

Hi bros/sis,

Found this tubeworm-like thing with flowing long wavy tentacles (circled in red), any idea is it a friend or foe?

thanks

[yikai]

spaghetti worms

[Milch_Tan]

Thanks again lemon²

hmm found this picture though

"What is a Zoanthid Irritaters?

Last updated 2006.02.12

A Zoanthid Irritater is something that can irritate a Zoanthid for long periods of time, causing it to close, and eventually kill the Zoanthid. I'm not talking about a Hermit crab that crawls across a Zoanthid colony. No worries, he's in and out in a minute. Or a fish that swims by - again, they'll open and close fairly quickly. An example is something with sweeping tentacles that don't eat Zoanthids, but will rest their tentacles o­n a Zoanthid for long periods of time causing it to remain closed and eventually kill it. Some of these critters have stinging tentacles as well which compound to the problem. It should be noted that not all Irritaters effect all Zoanthids! Some seem immune while others fall victim... "

will try to remove it tomorrow