What's on my mushroom?

[Sandroni]

My mushroom has been shrunk for the past 2 weeks and I'm not sure why, but I found this clove polyp thingy on the rock?

 

[Sandroni]

 

[MRodrigues1991]

Possibly get a better picture as I don't think anyone can tell what is in the pic. Try under white lights if possible.

 

[Lionfish Lair]

It looks like a little feather duster to me. I don't think it's an appy or a hydroid.

 

[Sandroni]

Possibly get a better picture as I don't think anyone can tell what is in the pic. Try under white lights if possible.

Whatever it was went back in quick when I tuned the color!

 

[MRodrigues1991]

if it went in that quickly, could be a feather duster, but cant be sure. try a flashlight with the lights off possibly?

 

[Sandroni]

Here is a better pic

 

[Sandroni]

if it went in that quickly, could be a feather duster, but cant be sure. try a flashlight with the lights off possibly?

It seems to be greenish