Help id this growth in rhodactis and cabbage

[Vitor]

Not sure this is even anything, but as it seems to be on two different coral now I am curious (maybe worried?).
As you can see in the pictures, there seems to be this thing both on my green cabbage and rhodacris. I circled it in black. I don’t really know how to describe it. Any help would be very much appreciated. Thanks!

 

[NonstopSoda]

I dont know about the growth on the cabbage coral but the second photo looks like a feather duster or some kind of tube worm.

 

[Vitor]

I dont know about the growth on the cabbage coral but the second photo looks like a feather duster or some kind of tube worm.

Would any of those be anything to worry about?

 

[NonstopSoda]

Would any of those be anything to worry about?

If it is a feather duster then no, the only tube worm i would worry about is vermintid worms and even then they aren't bad for the tank i just personally dislike them cause they can irritate corals.

 

[sfin52]

If it is a feather duster then no, the only tube worm i would worry about is vermintid worms and even then they aren't bad for the tank i just personally dislike them cause they can irritate corals.

And they easily will cut a finger