What is this creature on my Zoas?

[jrsydevi1]

I noticed this thing on a couple of my Zoas.. was just tonite able to get a pic of it...

here's another...

I dont see any damage to the polyps after it's gone.. but when it's there.. they close up...

It doesnt look like a spider to me.. but I'm no expert...

Your thoughts please!

 

[EricSIny]

Nudibranch a coral eating pest

 

[jrsydevi1]

Nudibranch a coral eating pest

I was afraid of that...

Managed to syphon him out and grab a better pic...

Any good method to eradicate these? or just pick em off when I see 'em?

BTW.. this guy is maybe 1/16" in length.. perhaps less...

 

[trinidiver]

think i need to start looking carefully in my tank

 

[SushiGirl]

Nice pic of it. You need to dip your zoas, scrape off any eggs, and watch for more.

 

[Fin Mike]

Get ready for a headache. You must be ever vigilant and break out the flashlight in the late night hours. Keep looking because they will assume the color of the zoo's they're eating. Get a melanarus wrasse as well. They will eat the nudi's. You can dip them in revive or give them a freshwater dip.

I've had them and they are a real pain.

 

[EricSIny]

This article will help quickly eradicate your problem, it did wonders for me.
http://www.lionfishlair.com/hitchhiker/aeolid.shtml

If done properly you can be nudi free in 2 weeks.

Be sure in the future to dip and inspect all new corals prior to placing into DT to avoid these type of problems.

HTH

 

[jrsydevi1]

Dipped both frags (can hardly call them colonies) today... nothing visibly fell off.. and no eggs are visible... havent seen any more nudi's yet...