Is this what I think it is???

[Tcat1k]

Saw this tonight sticking out from under my hairy mushrooms. I picked up the rock and saw a white tube like structure underneath with more sticking out of the ends. Is this aiptasia?

 

[Lost in the Sauce]

Looks like it.

 

[ISpeakForTheSeas]

The white tubes look like feather duster worms to me - harmless filter feeders.

Maybe some pics under white light could help clarify what we’re seeing here though.

 

[Tcat1k]

The white tubes look like feather duster worms to me - harmless filter feeders.

Maybe some pics under white light could help clarify what we’re seeing here though.

Yeah, now that I've looked those up, that's what it is. They are sticking out if the tube opening and retract back in when you get near them. Pretty up close. Huge sigh.

 

[EeyoreIsMySpiritAnimal]

Tube worms