Hitchikers ID

[LanM]

Hi guys/gals, I have some hitchikers multiplying and I'd like to ID them and eradicate if they're the nasties.
I have several white feathery looking things growing next to eachother, and within a nice 2.5lb round rock with sponge on it.
Any help would be appreciated. If its aiptasia on the pukani, im headed to the store shortly and will pick up some super glue.

Thanks!

 

[XNavyDiver]

Looks like a fan worm. Filter feeders. Harmless.

 

[LanM]

Great, thanks. So no need to hunt down chemicals while I'm out.

And was that fan worms in both pictures?

I just removed the polyp in the 2nd picture, they were on the rock when it came in. Didn't make it.

 

[XNavyDiver]

Great, thanks. So no need to hunt down chemicals while I'm out.

And was that fan worms in both pictures?

I just removed the polyp in the 2nd picture, they were on the rock when it came in. Didn't make it.

The second pic is a bit murky, but the first is clearly a fan worm.

 

[LanM]

Thanks for the reply, Ill snap a better shot of it when I get home this evening. They look similar to the other worm, but no visible body. And a circular ring of fingers or fan I believe

 

[reef lover]

Feather dusters...harmless

 

[sfin52]

Feather duster good guy

 

[Big G]

Feather duster is a filter feeder. Good guy/gal

 

[LanM]

I had to move the rock around for some frag additions last night, so the hitchiker in question had tucked in during that fun. I'm going to try to snap a pic of him this evening

 

[Sheldon Sebastian]

Just noticed this guy after adding some Zoas to a piece of live rock. It has two small antennae similar to a snail and two layers of fluorescent feathery spines. Any ideas??

 

[KJ]

Just noticed this guy after adding some Zoas to a piece of live rock. It has two small antennae similar to a snail and two layers of fluorescent feathery spines. Any ideas??

Zoanthid eating nudibranchs.
https://www.google.com/search?q=zoa...X&ved=0ahUKEwihteat4dbNAhXE7oMKHaZNCdkQsAQIGw

 

[reef lover]

Yup bad get that guy outta there...