White tubes growing throughout Zoa colony?

[AkOndray]

I've noticed these white tubes like things coming out between the polyps on one of my Zoa frags. I took a picture this morning with the lights off so you can clearly see how many there are.

 

Any ideas? Down at the bottom there's also a circular white "pouch" that I assume is some sort of sponge but I'm not positive on that either.

 

 

[Christopher Marks]

Hi @AkOndray!

 

Those all look like sponges to me. Is this a pretty new coral frag or have both the zoanthids and sponges been spreading?

[Joevember]

Sponges. They will make the zoas close up soon, so give the frag a freshwater dip for a couple minutes to get rid of them.