What is this

[greaver83]

Can anyone identify this growing out of my rock I find it strange that anything is growing out of being that it was all dry base rock when added last November

 

[Marbie]

Looks like a little fan worm to me.

 

[greaver83]

That what I was thinking but I still have no idea how he got there

 

[Fish-guy]

Feather duster I think. I had a few show up out of nowhere in my tank.

 

[Serenity09]

The pic looks like aiptasia. Look at pics and see if it matches

 

[Starchar]

Little feather duster, likely a hitchhiker from rock or something.

 

[carey]

Yep, baby feather duster. I love those guys, so cute!@!