Nudibranch ID Please

[kwolfskill]

Hey Gang -
I found this guy in my tank tonight and I'm wondering if he is good and I should leave him, or he is bad and should go away. I have been trying to figure out for a while now why my corals have been closing up or getting eaten, could it be this? BTW - it is about 2 inches long and 1/2 inch wide.
Thanks!

 

[angler man]

I love Nudi's! Unfortunately, they love to eat what hold dear. We see a beautiful coral, they see a Big Mac. I'm interested to see if anyone can ID this guy. My guess is he's not suitable for your tank.

 

[renogaw]

most nudis are not good, and will usualy only eat one thing. that SORTA looks like a berghia though

 

[kwolfskill]

Originally Posted by renogaw
most nudis are not good, and will usualy only eat one thing. that SORTA looks like a berghia though
That is what I thought. So, if it is a berghia, I would want to keep it because it is keeping the apaista (sp?) down in my tank, but otherwise I probably want to get rid of it.

 

[1bigboy69]

I don't believe berghia get that big?

 

[renogaw]

i don't know, hense the SORTA

 

[dogstar]

IMO, Phestilla melanobrachia. Feeds on Tubastrea.

 

[kwolfskill]

Originally Posted by Dogstar
IMO, Phestilla melanobrachia. Feeds on Tubastrea.
The coloration doesn't quite match, but it would explain why my turbina and candy cane keep getting stressed out...

 

[kwolfskill]

bump

 

[blazin2k6]

I found something yesterday on my zoanthid frag rock. It appeared to look like a slug but didnt really have any head or anything i could find. But i have noticed it getting bigger and bigger and the last week or two my zoanthids havent been opening at all on this frag so i finally decided to just peel it off. Im hoping it wasnt skin of new zoanthid growth. LOL. But seems that my zoanthids are happier now.

 

[kwolfskill]

Anyone else?

 

[sommisofish]

This is a Phyllodesmium briareum and feeds on a number of species of briareid soft coral. I've had these before - they are non-poisonous. Let me know if you decide to let him go, one of my specialties are nudibranchs.