ID? There's 3 of them

[reefween]

Got this coral 2 days ago. Dipped them and everything. A day later, I see three of these little white Hydroid looking things, but it doesn't look like the ones I've seen before. What could this be? Another coral that happened to grow? A pest?

 

[lucyretz]

nudibranch of some type? id be worried about zoa eating ones

 

[EeyoreIsMySpiritAnimal]

Looks like a clove polyp from here, but a closer picture would help.