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FAQs about Nudibranch Identification 8
Related Articles: Nudibranchs, Sea Slugs,
Related FAQs: Nudi ID 1, Nudi ID 2,
Nudi ID 3, Nudibranch ID 4, Nudibranch ID 5, Nudibranch ID 6, Nudibranch ID 7, Nudi ID 9,
Nudi ID
10, Nudi ID 11,
& Nudibranchs 1, Nudibranchs 2, Berghia Nudibranchs, Nudibranch Behavior, Nudibranch Compatibility, Nudibranch Selection, Nudibranch Systems, Nudibranch Feeding, Nudibranch Disease, Nudibranch Reproduction, & Sea Slugs, Marine Snails 1,
Marine Snails 2,
Marine Snails 3,
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Nudibranch? 3/2/17
<14 megs? We only ask a few things; one is that folks limit their file sizes...>
I have a 65 gallon reed tank that is flourishing. I have very little problems
and all of my corals and inverts are doing very well. The only fish in the tank
is a mandarin goby. It is also doing well.
<..."often cited as Tritoniopsis or Tritonia. They commonly come in with leather
corals which is their pre.....">
In the last week, my newest addition (had been in tank about 2 weeks with no
problems) a 4 inch blushing leather coral, started to fail.
<Bingo; and BINGO was his name oh!>
One of its lobes died off. So, I moved it to a higher light zone. Slowly but
surely it died off one lobe at a time. It has completely disappeared as of about
3 days ago. Today, I saw what appears to be a large Nudibranch. I took a
picture. In your opinion, do you think this is the culprit? It actually looks a
little bit like a blushing leather in coloration. I wonder
if it was smaller before eating and went unnoticed until the leather was gone.
Now it is cruising the tank looking for more. Anyway, I can't find a similar
picture anywhere to identify this Nudibranch. Have you seen one like this
before? Do you know what it is?
<Please read here:
http://www.wetwebmedia.com/nudifaqs2.htm
Thanks,
Andy Brenham
<Welcome. Bob Fenner>
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Identification please
1/31/17
<Appears to be a SeaSlug (Opisthobranch) of some sort... need to see entire
organism. Bob Fenner>
Hi it was suggested to me to ask if you would identify this creature that has
suddenly appeared in my Marine tank. I have asked on a couple of groups I'm on
but no one seems to know what it is. The last suggestion was a sea hare, but
personally I don't think it is. I have attached a photo.
Thank you
Daphne
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re: Identification please
1/31/17
Here are more pics
<Strange.... the sensory processes on the head don't look like rhinophores (of
Nudis), but the girdling underneath the body does.... and the animal lacks
dorsal "gills". What are does your live rock hail from? What else with hard
structure have you added recently (the last few mo.s)? I've scanned my sea slug
ref.s, and the Net and don't see this Gastropod. Oh, and about how big is it?
Bob Fenner>
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Re: Identification please 2/1/17
Hi Bob
<Hey Daphne>
The main rock wasn't live, we opted for bleached rock as we had lost everything
when our tank crashed. The only live rock I guess would be when we have bought
corals,
<Yes>
we have recently had a sun coral from our lps which had been fragged. This
hasn't done well in fact the guy from the shop said it looked like
something was eating it. Whether it's this visitor or not I don't know. As
regards size when fully stretched out I'd say he is about an inch and a half and
goes long and slim, but then he can change and get more flat and broad. He is at
the moment climbing around the glass at the front of the tank where he has been
most of the day.
<Is it possible that the gills were chewed off here? This looks more like a
Nudibranch than anything else. Am going to ask a few friends for their help. Bob
Fenner>
re: Identification please; and posted to Joe via FB
2/2/17
Thank you both Bob and Joe I will indeed remove from my tank.
<Welcome. Good>
Kind regards
Daphne
<And you, BobF>
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Nudibranch id please 1/28/17
Hello there, I first want to thank you for previous help a long while ago.
My issue was dozens of hermits large and small disappearing completely,
shell and all. You (can't remember which crew member in particular) had
suggested it sounded like I could have a predacious worm. Soon after I
managed to find 2 large fire worms when looking at night. I managed to
remove the pair, and haven't lost a crab/snail/shrimp since!
<Ahh!>
But as for my current question. Yesterday I purchased some corals,
specifically a colony of Ricordea yuma, a colony if Zoanthids and a colony
of Palys. In addition to the wonderful turbo snail and emerald crab
hitchhikers I scored, this morning to my surprise I have a tiny Nudibranch
and a small starfish on my glass. The starfish is I believe an Asterina
(grey with 6 arms) but it's at least twice as big as any I've seen in my
tank previously.
But my main concern for the moment is the Nudibranch. Of course I'm worried
he could be the type that eats Zoanthids, although I'm hoping that the fact
that I have found him in the glass is a good sign. Regardless, he is in jail
for the moment. I should add that I have now inspected my new Zoas and don't
see any eggs as of yet.
I would really like to keep this guy if I can, so please tell me if
you think he is a good Nudi or a bad Nudi.
<Mmm; appears to be a Aeolid... do consume Cnidarians... often look a lot
like their prey>
I hope these photos are clear enough to get a good identification. He is
about a quarter inch long.
I would also like to know, if he does end up being a Zoanthid eating
Nudibranch, is that what they eat exclusively?
<Don't know; but too likely so. See the Net w/ the family name...>
Rather than killing him I would like to set up a nano tank to keep him and
any other future questionable hitchhikers but if he will die without
Zoanthids I guess I have no choice.
Thanks in advance!
<Welcome. Bob Fenner>
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Nudibranch?
Hi Crew!
<Dani>
Still cycling my 28 nano but saw my first official hitchhiker today...guessing
it is some sort of Nudibranch! :)
<Ah yes.... do you have Cnidarians present? Do see WWM re Nudibranch ID. Bob
Fenner>
Dani
Fwd: Nudibranch?
By the way, no Zoanthids in my tank, still cycling. There looked like
there were some tiny remnants of a yellow sponge that matched his tentacle
coloring--wonder if that was his food?
<... possibly; though I doubt this. Likely some other stinging-celled life on
your live rock is supporting this/these for now.>
Don't want a pest, but if he just eats sponges or won't like explode into a
population of Nudis then I'll let him wander in my tank.
<Likely what I would do as well at this juncture. BobF>
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Re: Nudibranch?
12/31/15
So last night I searched the tank with a light and saw something yellow,
matching my little Nudibranch friend. Seems you were absolutely right, seems to
be some kind of coral?
<This looks like a sponge to me... no polyps; but a few osculae in view>
I'm not even sure if it is still alive?
<Appears to be>
Sort of bummed my Nudibranch friend is a coral muncher!
<Mmm; night not be. Most consume hydrozoans....>
Anyway, thought
you'd like to see the puzzle come together, happy New Year! :)
Dani
<And you! BobF>
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Aeolid Nudibranch ID? 9/14/15
Dear Sirs,
<Dave>
A friend on a reef forum has suggested you may be able to identify these slugs I
have been finding in my aquarium. She suggests they might be either *Aeolidiopsis**
ransoni* or a *A. harrietae*.
<My money is on the latter. A fave ref. (Bill Rudman)
http://www.seaslugforum.net/find/22757>
I'm attaching a
number of photographs of a number of different animals. All have been
found on or very close to Zoanthid soft corals within my reef aquarium.
<Do consume Palythoa>
The largest animal is around 10mm long with the small ones being 2-3mm I look
forward to hearing from you.
Best wishes,
Dave
<Thank you for sending this along. Bob Fenner>
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Re: Aeolid Nudibranch ID? 9/15/15
Dear Bob,
<Hey Dave>
Many thanks for the identification. I'm busy removing them off my Zoanthids...
<Ah yes; I would>
Best wishes,
Dave
<And you; BobF>
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Aeolid Nudibranch ID?
6/18/15
Hello crew!
I have been successful for years due to wealth of information this site has to
offer. Thank you for your time and service! Now I am hoping I can get a
verification of what I think I have learned after reading lots of links here.
<Ahh!>
I have had a pistol shrimp / Goby combo for the last three years. This year we
slowly started adding corals to their tank. I have diligently QT everything we
bought and everything has been cleared and in the display tank. Well, (yep here
it is...) except some rock rubble that I bought last week for the pistol shrimp
(he gets so excited about new rocks outside his
door) from my local saltwater retailer's live rock bin.
Two days later I saw this guy on the glass, he was about the size of a grain of
rice, and I removed him from the tank (picture attached taken with a magnifying
glass). Two days after that my only piece of Montipora has batches of these same
things around the base.
<Trouble; are Montipora eaters. Need to isolate, and likely dip/bath all
incoming corals to avoid such undesirable hitchhikers>
The Montipora is now in a hospital tank and manual siphoning of the Nudibranch
has begun. I believe from what I have read that these are Aeolid Nudibranch but
if you can verify I could not find many definitive pictures on the link for
these (http://www.wetwebmedia.com/MontiNudiF.htm).
I just want to make sure I have the right plan of attack by making sure I am
reading about the right thing. I have not seen a single one of these Nudibranch
on any other SPS or LPS I have (although I will continue to check daily).
Thank you!
Esther
<There are a few approaches... I'd be reading, and pronto. Bob Fenner>
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What is this?
1/30/15
<Ahh; Tritoniopsis; a soft-coral feeding Nudibranch. Bob Fenner> |
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Orange and Yellow Nudibranch... Iatrogenic troubles...
incomp. 5/18/14
Hi, I have a question regarding a Nudibranch I purchased last month. I
have included a picture of him. Beautiful specimen, very interesting to
watch. I bought him from my LFS, which is normally pretty solid.
The Nudi came in as an extra.
<A bane of the trade... go ahead>
I saw him and asked about him. I was told they were not given a
name, and as such could not sell it to me because they were not sure
what it ate.
<I do like their honesty here>
The next week I came in and was informed that they had indentified the
Nudi. I was furnished with a picture in a book, which identified the
Nudi and said it ate only live red sponge.
<Mmmm; doubtful>
The picture looked exactly like the Nudi, so I went and bought a
red sponge
<... there are many different types of reddish Poriferans. Some are NO
fun>
and then came and got the Nudi. I do not recall what the Nudi was
called, but I can find out.
Well, the Nudi didn't ever touch the red sponge. Since I've
never had a Nudi(other than lettuce)
<And these aren't Nudibranchs... see WWM re Elysia>
I assumed he was eating and I was just not catching him. I came home
last night and the Nudi was not moving, just sitting in the corner...not
usual for the specimen from what I've witnessed. I also noticed my
livestock in the tank not acting normal, so I kept and eye on the tank.
This morning I woke up and the Nudi had not moved, so I picked
him up and smelled him.
Dead. So I flushed him and tested the water. Parameters are as
follows.
Salinity-1.026
Ph-8.2
alk-10
Calcium-400
Mg-I don't have a test
Nitrate-80
<High>
Nitrite-0
Ammonia-0.25
Phosphates-2
I know my trates a high, but this is a biocube with many
anemones
<...>
and some sun corals. Only 3 fish, a potters angel
<Misplaced here>
and a pair of gold striped maroon clowns.
<These two too>
I struggle to keep the trates around 40, so 80 is high even for what I'm
used to seeing. All my anemones were sucked up and not behaving
normally.
<Opisthobranchs can definitely be trouble when
they die, dissolve in small volumes>
Fish did not seem to be affected. I also have a basket starfish in
there, which fell from his favorite spot and died. So I immediately did
a 75% water change. The livestock is starting to do better(6 hours since
water
change). The only casualty seems to be the starfish :(.
Anyway, my question is....can you help me identify this Nudi and what he
eats?
<Not one I've see, photographed... and too lazy to get out my
references... see the works of David
Behrens, or spend a few hours on "SeaSlug
Forum">
And
Is there anything else I can do to ease the stress on my tank from the
dying Nudi?
<Read on WWM re... can you see, use the search tool, indices?
Nudibranch compatibility...>
Thanks for your help!
Matt
<Welcome. Bob Fenner>
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