Nudibranch Hitch hiker

Dont know how he got in the tank but he must of been there for a while. Anyway, is this guy a good Nudibranch or bad.
Ive got him out of the tank for now but I dont know what to do with him.

I dont see where he has hurt any of the corals yet so maybe good? Ive got a couple apatasia I had to take out manually so he's definitly not doing his job there.

Nudibranch Trespasser - YouTube (if below vid doesnt work for ya)

http://www.youtube.com/watch?v=Bfj34tmGbNw

 

I've never seen one that looks like that, most nudibranchs only eat one type of food, ei. coral, algae, etc etc, and because they are specialized eaters they often resemble the food they eat. do you have any corals that resemble the nudibranch?

 

Nope, mostly soft corals and nothing that looks even close like him, but he must be eating something.

 

Here's a better video of him. He's not happy.

IMG_0140a.mov - YouTube

 

It looks to be a tritoniid nudibranch, and they feed on soft corals. A similar species feeds on several varieties of octocorals. It's probably not this species since the colors are very different, but you'll see the similarity in shape:

The Sea Slug Forum - Marionia olivacea

The Sea Slug Forum is no longer set up to browse by family (that I can see) so it might take a while to sort through the possibilities in the subfamily Dendronotina. Still, you could probably find it there if you had time.

Cheers,




Don

 

If he was "hands down" good for the tank, I would keep him. But, I guess it's better to be safe than sorry. It's just weard he just all of a sudden showed up. I watch my tank pretty closely.

Anyway, he's going away.

Thanks for the help