Need help identifying hitchhiker

[Nanoreef523]

[URL=http://s300.photobucket.com/user/Nanoreef523/media/Mobile%20Uploads/image_zps4u7vyncg.jpg.html][/URL]

Is this harmful and what is it?
Thanks

 

[Humblefish]

[HASHTAG]#reefsquad[/HASHTAG]

 

[joseserrano]

It looks like a sea hair, maybe

 

[kschweer]

It looks like a sea hair, maybe

That was my first thought as well. But after looking at it a bit more I'm not too sure.

Any chance you can get a few more pictures?

 

[redfishbluefish]

Agree....looks like a sea hare.....great for eating hair algae.

 

[Shep]

As far as I can tell it is a sea hare but better pics would really help

 

[Nanoreef523]

That was my first thought as well. But after looking at it a bit more I'm not too sure.

Any chance you can get a few more pictures?

I'm not home right now I'll post some more pics soon.

 

[Humblefish]

I was thinking sea cucumber, but this is not really my area of expertise.

 

[cloak]

A Sea Cucumber would be my guess as well. Maybe these links will help.

http://www.advancedaquarist.com/2003/1/inverts

http://www.saltcorner.com/AquariumLibrary/browsesectiongroups.php?SectionID=33

 

[Nanoreef523]

I was thinking sea cucumber, but this is not really my area of expertise.

I was told it was a sea cucumber and told to be aware of a "cuke nuke." A cuke nuke is the cucumbers defense mechanism when it's stressed and it will release toxins poisoning the whole tank. So I wanted a second opinion as to what to do, if I should remove it or not.