Spirorbid worms will be the little spiral feather duster dudes. They are beneficial filter feeders.

I just call Xenia a weed because it has a tendency to multiply quickly. It is definitely pretty, but most seasoned reefers will avoid it due to its tendency to spread so badly. Same with many soft corals.

Thanks guys, I seem to have got a 3 for 1 with my pulsing xenia coral.

I got a colony of zoas on the bottom of the plug and also another coral Im not familiar with. Its a light brown/reddish tinge and looks kind of like acropora except I dont think it is. I wish I could post pictures, I'll try to find something that looks similar, but any ideas what might be attached to a xenia plug in a store?

Also, Kien, how do you go about fragging the xenia? Ive never done this, can I cut anywhere? Do I need to remove it from the tank to frag? Will it release any chemicals I dont want to come in contact with my skin? Thanks again!

Xenia doesnt even need contact with other rocks, it can release and reattach itself, like mushrooms, another reef weed.

Curious, I wonder if all xenia do this because mine have never repopulated this way..