Bizarre invert growing on trachy

[Carter o51]

Fellow reefers, I need your help in an id for something I've never seen before and have never heard of. I have a trachy that went through some bad recession and I've been bringing it back with slow to no recovery, but it hasn't been getting worse. I have noticed that there are these long feathery looking filaments that extend around the flesh, and I figured they belonged to some worm. Today I took the coral from the shady spot it was in and noticed what I can only describe as transparent, brownish/grey tissue growing on the tissue of the coral and covering the mouth. Unfortunately I decided to take tweezers and do some coral removal surgery before I could snap a picture, but does anyone have any idea what this thing could be? It was completely attached to the coral tissue, and I removed some of those feathery filaments when tweezing some bits off. If it regrows I'll try and snap a picture. But a worm or some sort of organism growing over living tissue of a coral is something I've never heard of. Thanks for the read and the help

 

[saltyfilmfolks]

A barnacle perhaps.

 

[Carter o51]

A barnacle perhaps.

I don't think a barnacle bc all of the tissue was soft. My first guess is a worm but it didn't really have any features that would suggest that

 

[saltyfilmfolks]

I don't think a barnacle bc all of the tissue was soft. My first guess is a worm but it didn't really have any features that would suggest that

So hard to reel with no pictures.
A barnacle will have sweepers or filaments and then a soft body inside the shell. Similar to a feather duster.

 

[S-t-r-e-t-c-h]

Comb jellyfish.

They send out a long streaming tentacle that looks sort of like what you describe. This link has some photos:

http://www.thereeftank.com/forums/f184/comb-jelly-216722.html

They tend to irritate corals that they touch. I've even had them force leather corals closed entirely until they are removed. You can scrape off the entire jelly and it shouldn't grow back...

 

[Carter o51]

Comb jellyfish.

They send out a long streaming tentacle that looks sort of like what you describe. This link has some photos:

http://www.thereeftank.com/forums/f184/comb-jelly-216722.html

They tend to irritate corals that they touch. I've even had them force leather corals closed entirely until they are removed. You can scrape off the entire jelly and it shouldn't grow back...

Wow this was spot on, thanks so much! I looked it up and that is exactly what I have. A jelly didn't even occur to me