What is this?

[Elitehunter1]

Ideas? Never seen something like this...

 

[Sincity]

That's how my Dino started:/ then it turned a brownish color with all the bubbles. I hope that's not the case:/

 

[Jlsardina]

Looks like a spoinid worm.

 

[Jlsardina]

Looks like a spionid Worm. Harmless unless they are located next to or in a coral colony as they can irritate the coral

 

[Reefpete]

Got one too in one of my corals can I just rip it out ??

 

[Elitehunter1]

I have those worms in tank but the picture is something different. For those worms, I've heard of people just clogging thier hole if they don't like em. I've never seen em cause any damage to my corals.