Resolved What is this?

Looks like some kind of nudibranch maybe?

 

That was my first thought as well. It looks like it could be a monitipora eating or zoa eating nudibranch too, but I'm not positive on that.

 

Certainly does look like a nudi. Pagojoe would be able to identify which kind.

 

grab it while it is out in the open.. Then it can be identified as reef safe or not..

 

Thx for the quick replies. I got it quarantined in a small tupperware w/ lid. I'll wait for further instruction.

 

If there's one, there's likely to be more. You're going to want to dip your zoanthid colonies.

 

dip?

 

Revive, Seachem Reef Dip, Tropic Marin Pro Coral Cure, Lugol's Solution, Malachite Green, Flatworm Exit, Prazi-Pro, and many many others. Just buffer some RO/DI water to pH 7.8~8.2 and then follow the directions on whatever brand of coral dip you have. Wait 5 minutes....then shake the colony in the dipping container to remove dead/dying parasites.

EDIT: after you take the zoanthid colonies out of your dipping container and put them back into you display tank, make sure you dump out the water in the dipping container.

 

Are you certain this creature is bad? If so can you please give me a name? I want to research this creature before I kill it, not saying I don't trust your advice. I just never take anything I read on the internet as truth until I research it a little.

 

It's an aeolid nudibranch that is commonly just called Zoanthid Eating Nudibranch. zoanthid eating nudibranch - Google Search