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FAQs about Non-Vertebrate Animal Identification 65

Related Articles: Marine Invertebrates, Marine Invertebrate Systems, Marine Invertebrate Compatibility, Marine Invertebrate Disease, Marine Invertebrate Reproduction, Quarantine of Corals and Invertebrates, Feeding Reef Invertebrates, Lighting Marine Invertebrates, Water Flow, How Much is Enough,

Related FAQs: Non-Vert IDs 1, Non-Vert IDs 2, Non-Vert IDs 3, Non-Vert IDs 4, Non-Vert IDs 5, Non-Vert IDs 6, Non-Vert IDs 7, Non-Vert IDs 8, Non-Vert IDs 9, Non-Vert IDs 10, Non-Vert IDs 11, Non-Vert IDs 12, Non-Vert IDs 13, Non-Vert IDs 14, Non-Vert IDs 15, Non-Vert IDs 16, Non-Vert IDs 17, Non-Vert IDs 18, Non-Vert. ID 19, Non-Vert. ID 20, Non-Vert. ID 21, Non-Vert. ID 22, Non-Vert. ID 23, Non-Vert. ID 25, Non-Vert ID 26, Non-Vert ID 27, Non-Vert ID 28, Non-Vert ID 29, Non-Vert ID 30, Non-Vert ID 31, Non-Vert ID 32, Non-Vert 33, Non-Vert ID 34 Non-Vert ID 35, Non-Vert ID 36, Non-Vert ID 37, Non-Vert ID 38, Non-Vert ID 39, Non-Vert ID 40, Non-Vert ID 41, Non-Vert ID 42, Non-Vert ID 43, Non-Vert ID 44, Non-Vert ID 45, Non-Vert ID 46, Non-Vert ID 47, Non-Vert ID 48, Non-Vert ID 49, Non-Vert ID 50, Non-Vert ID 51, Non-Vert ID 52, Non-Vert ID 53, Non-Vert ID 54, Non-Vert ID 55, Non-Vert ID 56, Non-Vert ID 57, Non-Vert ID 58, Non-Vert ID 59, Non-Vert ID 60, Non-Vert ID 61, Non-Vert ID 62, Non-Vert ID 63, Non-Vert ID 64, & Marine Invertebrates, Marine Invert.s 2, Marine Invert.s 3, & FAQs about: Marine Invertebrate Behavior, Marine Invertebrate Compatibility, Marine Invertebrate Selection, Marine Invertebrate Systems, Feeding Reef Invertebrates, Marine Invertebrate Disease, Marine Invertebrate Reproduction, & & LR Life Identification, LR Hitchhiker ID 1, Anemone Identification, Aiptasia Identification, Aiptasia ID 2, Worm Identification, Tubeworm ID, Polychaete Identification, Snail Identification, Marine Crab Identification, Marine Invert.s 1, Marine Invert.s 2, Marine Plankton,

Id of worm/potential young sea cucumber      6/13/18
Got a frag of sps of a fellow reefer and found a couple of worm like creatures that are very small on the bottom.
The guy i got the frags from has 2 cucumbers in his tank. To the best of his knowledge no bobbit/eunice worms.
Wondering if you might be able to id or help out.
The large one in pictures is about 4mm long.
<Wow! No wonder your pix aren't cropped, crisp (highly resolved)... Likely are Holothurians, but could be some type of worm. I wouldn't panic. Thanks for sharing. Bob Fenner>

Re: Id of worm/potential young sea cucumber      6/13/18
Hi Bob,
Yes was very hard to get pics. Those were the best i could get.
So you would say safe to let loose in display?
<Yes; I would>
I figure if they are small holothurians the sand would be a benefit.
<Agreed. Cheers Adam. BobF>

Purple rolly poly creature    6/7/18
Hi Crew!
<Hi Dani>
Found this hitchhiker while I was aquascaping. It is less than a quarter of an inch and resembles a roly poly bug.
<Ah yes, this is a mollusk of the class Polyplacophora, commonly known as Chiton or sea cradle, they have shells made up of eight overlapping calcareous valves; usually found on every environment, pose no threat to other aquarium inhabitants as they are algae eaters, always crawling over the glass or rockwork grazing for film algae and diatoms, so they can be use as part of the clean up crew.>
What I found most remarkable was his extremely bright purple color—like neon bright kind of purple! I let him be in the tank. Figured I’d share, just in case you haven’t come across this before, although you probably have lol.
<Thanks for sharing>
Sincerely, Dani Conner

Identify?       5/21/18
Hi Bob
Can you tell me what the yellow Lacy looking area is?
<A boring sponge of some sort Tracy... drilling into the coral. BobF>

Some Help Identifying this    4/21/18
Thoughts on what these might be?
I had a bad feeling I had the dreaded black bugs. But I read those are arthropod of some sort.
But I think this is some kind of AEFW? They have the hallmarks of a flatworm.
<In some ways; yes. The "eyes" structures, flexible body; absence of appendages. Worm like>

They are blacker than the AEFW I’ve seen before and smaller. I saw them on one of my Acros so I dipped them and put these under the microscope.
The AEFW I’ve seen are about the size of small rice, these are the size of fine black pepper.
I didn't have the software to measure them under my scope.
<This is close enough>
The second half of the video is more interesting.
<Yes... and that little tail... What dip, procedure did you employ? Bob Fenner>

Re: Some Help Identifying this    4/21/18
Bayer Advanced Complete Insect Killer for Soil and Turf Concentrate. 2.5 gallons of water with 400 mL of Bayer. 15 min, then I perfuse tank water into the dip container letting the overflow go down the drain.
Then I dip in Revive for about 10 min - not sure why other than it seems to make the coral “slime up” and then more things come off when I do the final rinse.
<A common occurrence>
Final rinse off with tank water and put the coral back in the tank.
So far not coral loss and the “bugs” drop off pretty darn fast.
<With the use of Bayer and ReVive most all should be eliminated. Am not sure what these are; or if they're predaceous pests or no. Bob Fenner>

Re: Some Help Identifying this     /Lynn's input      4/22/18
Hey Bob! It's good to hear from you. Things are going well here. We're now loving life in beautiful Colorado after being flooded out in hurricane Harvey. This was a case of being gifted with a beautiful rainbow after the storm! I hope all is going great for you as well. I just saw the attached query and will get on it right now. Take care, Lynn
<Ah; great to hear from you and realize you're doing well Lynn. Cheers, BobF>
<<Thanks, Bob. Life is good! As for the queried subject, I've looked everywhere and can't offer anything beyond what you've already stated and recommended. Hopefully, I'll be more help with the next ID! Take care, Lynn>>
>Thank you Lynn. A mystery for sure. BobF<

Flatworm or something else?       4/11/18
Hi WWM Crew,
Was hoping to get an ID on the mysterious creatures in the attached photos.
<Appear to be Acoel flatworms... Likely no big deal. See WWM re>
Thanks for your help!
Adam Clayton
<Welcome. Bob Fenner>


Hitchhiker ID      3/24/18
Hi again all! I have a few hitchhikers on some Caribbean live rock that I'm hoping to identify, if you'd be willing to lend an eye and an opinion. I think the anemone is an Anemonia melanaster and the sponge I believe to be
Mycale laxissima, but I know sponge identification is dodgy at best without a microscope.
<Even with at times>
The coral at its base looks to me like Eusmilia fastigiata, smooth flower coral. Do you feel I'm way off base on any of these? If so, what are they? I'd really appreciate your input. This is a brand new tank, still cycling so there are no fish or intentional inverts in there yet.
All the rock has been sourced from Caribbean suppliers.
<Leah, we ask/require that people send in files of no more than a few hundred Kbytes... you've sent 13 megs. And these pix are too washed out, poorly resolved to make out much. Please reshoot, re-size and re-send. Bob

Re: Hitchhiker ID      3/25/18
Sorry about that, all I have to take pictures is my phone and I didn't realize it saved pictures as such large files.
<Ahh! And we have quite limited email storage total; and when out in places w/ slow Net... Agonizing!>
I found an app to resize photos, please let me know if these work out better.
<Ah yes. The first... does it really have a stony base? To me it looks like a Glass Anemone/Aiptasiid; and the second; are you referring to the pinkish Sea Squirt or the stony coral under it? If the coral it may be a cup coral/Eusmilia, Caryophylliid of the trop. W. Atlantic Bob Fenner>  

Re: Hitchhiker ID      3/25/18
It is on a solid stony base, not in a crevasse or hole in the rock.
<But does the animal itself display a coral skeleton? Anemones do not>
I did not immediately think Aiptasiid for two reasons: first, when disturbed it pulls it's tentacles and oral disc down into it's rather fat column but does not pull into the rock at all (and indeed cannot because of its placement) and second, the tentacles keep bulbing up very similar to a BTA.
Are these behaviors Aiptasiids share?
<Can be; yes. They are quickly retractile, and do have bulging tentacles at times... Try using Google to see images, or WWM! >
I've never had them before so I only have "book learning" on them unfortunately.
<Are to be found looking about in the TWA. BobF>
Re: Hitchhiker ID      3/25/18

You're often a better resource than Google lol. I did look up quite a few images on Google image search and in various databases but i haven't made it through the WWM FAQs so I will keep looking! Thanks so much for your help!
<Glad to assist you Leah; hoping we can solve this mystery. Bob Fenner>

Can you Id this?      3/17/18
Hello Bob and WetWetMedia Friends,
<Hey Raul>
I took a picture of a Berghia Nudibranch and I noticed something else on the picture.
<Nice pix!>
Something I have seen over some mushrooms.
Can you identify the thing the arrow is pointing at, that you can see covering the mushrooms in the other 2 pictures?
<Oh yeah>
Is it a plague? A parasite? Or is something normal the mushrooms have?
<These are flatworms... some folks lose their minds launching attacks against such... best to be patient, perhaps add a biological control (predator). Let's have you read here: http://www.wetwebmedia.com/flatworms.htm
and the linked files above re>
Thank you.
Best regards,
Raul Labastida
<Welcome! Bob Fenner>

Re: Can you Id this?  Acoels   3/18/18
Thank you Bob,
<Welcome Raul>
I really appreciate your help.
<Glad to render it>
I read all the articles and even searched in 2 forums.
I think I will go with your recommendation and be patient (Patient is the second name of Reefkeeping) as all the possible solutions are very hard to implement in my tank.
<Ah yes; this is what I'd do as well. Have seen much more concentrated aggregations of these Acoels on Mushrooms et al Cnidarians in the wild>
I was able to find and Buy some Berghia Nudibranchs to eliminate all the Aiptasia I had.
If I can find a Velvet Sea Slug - Chelidonura varians I will try with it as it seems to be the best and safest option.
If you can recommend something else please let me know.
<Nothing more. Nada mas>
Thank you again
Best regards,
Raúl Labastida
<And you. BobF>

Red algae ID     2/11/18
Hello, I wrote in many months back and you were super helpful identifying some algae for me. I hope you can help again! I have attached a photo of the reddish pink tree-like algae that is spreading like wildfire through my tank. I didn’t see anything like it in your algae ID archives... can you tell me what it is?
<I wish I could... the regular branching... I don't think this is an algae/Thallophyte, but a very pink Hydrozoan of some sort>
Does anything eat it that I could use to help control the spread? Thank you!
<There are some notable Seaslugs that ingest various Hydropolyps, but I don't know anything re this particular one. I would remove it from the system, as it may be producing stinging elements that will bother your other livestock. Do you have a microscope with a USB connection? I'd like to see some 100-200, 400 time magnification shots. Bob Fenner>

Re: Red algae ID      2/12/18
Hi Bob, I don’t have a microscope unfortunately.
<Perhaps a local fish store does, someone from a marine aquarium club>
I have tried some manual removal but ripping it off leaves traces behind that I cannot remove, and it is widespread, including my tank overflow box and powerhead. It also grows very very fast.
<Yeeikes! I wish I could tell definitive what this is. I have never encountered something this shade of pink, nor with the array of branching it shows>
Is bleaching my tank and starting over my only option to eradicate this pest?
<It may well be>
Also, can it sting fish or just corals?
<Can't tell w/o testing or microscopic looking. BobF>
Thanks again.

Help with jelly infestation on Coral system    1/9/18
Hi Bob,
I visited this weekend some friends that have a Fish and Coral store.
They are having some kind of Jelly infestation in their coral Beds and need urgent help.
<No fun>
I've never seen something like this before.
I took some small videos that show the issue. Is there a way I can send them to you so maybe you and other WWM experts can help with this problem?
I could send pictures but the videos show much better the problem.
<Please post on YouTube (or such) and send along the link. We have limited file space from our ISP>
Please help me to give them a solution.
Thank you.
Best regards,
Raúl Labastida
<I can tell you in general what the choices are... finding where the jellies are strobilizing from (rock usually) and removing them "by the roots" (scraping and vacuuming); and for ones in suspension, VIGOROUS water movement, mechanical filtration that removes them readily from the system. No chemical treatment, predators... will work here. Bob Fenner>
Estado de Mexico
Re: Help with jelly infestation on Coral system... Hydroids?     1/9/18

Hi Bob,
I call it jelly for not having any other way to call it. I don't know what it is.
As you can see on their first Triton Test (attached) from December 27 when this problem was starting their water parameters are not that bad.
<I agree>
Please find the links to YouTube for 2 short videos:
It's like gelatinous strings with bubbles that raise from the corals and all other surfaces.
<Mmm; this may be... a Hydrozoan... but need a much closer, better resolved image to tell. Preferably a few ten power microscope shot. Otherwise... there are MANY possibilities for what this might be. I don't see marks on the fishes... which leads me to think this isn't likely a very toxic thing at any length. But; do have your friends look up "Hydrozoan", "Hydropolyp", "Myrionema" for some input possibility>
Hope this helps to show you what I mean.
<Not really mate>
Thank you.
Best regards,
Raúl Labastida
<Welcome. BobF>
Re: Help with jelly infestation on Coral system    1/9/18
Hello Bob,
Thank you for the info.
I took the attached pictures of the gelatinous thing.
You can see how its on corals like a spider web and it is white when is inside the water. But if you take it out it turns reddish as you can see on the other picture.
<... five megs of gelatinous....>
I will try to get better 10X zoom pictures tomorrow.
Let me know if the attached pictures help.
<They don't>
Thank you.
Best regards,
Raúl Labastida


Re: Help with jelly infestation on Coral system     1/9/18
Hello again,
Sorry for the size of the pictures before.
They sent me these 4 pictures attached.
This is the best I can get with the cameras I have.
But we will try to take a sample to a lab Microscope and get pictures.
<Good; these images are not much better; but another thought came to me re control. Do you measure RedOx? Likely increasing such (via ozone use, perhaps UV... at worst peroxide) to about 400 microsiemens/cm. will improve water quality, decrease the food et al. available to whatever this is. This is what I would do, and via O3 use. B>
Thank you again.
Raúl Labastida

Critter ID       10/25/27
Hi there, I've got a funny little dude on one of my corals. I've asked every reefing group I can find and no one has an idea. It started off between these two heads of hammer coral and looked like a Chiton at first--it's a series of armored plates. Then it sort of curved as you can see here in the photo and it's growing fast. There are three of them now.
It is very, very hard--harder than the coral stalk and absolutely nothing budges it, even trying to slide a razor blade under the edge hasn't been successful. The picture below shows it just opened its 'mouth' end which is usually shut tight. Any ideas what it could be? I'd hate to kill it if it's a reef safe critter. Thank you!!!
<Mmm; can't quite make out in your pix, but would have guessed at first glance that these were Chitons as you mention, and with the clue that they can't be removed with a razor blade either limpets of some sort or, my final guess (for now) that these are a species of calcareous tube-building worm. I would leave them here.
Thank you for sharing. Bob Fenner>

Snails?     8/23/17
<Howsit Ryan?>
My local aquarium shop suggested that I submit a question about some critters in my tank. The attached images show these "sand-sized" organisms (about 1mm in diameter) blooming in my tank.
<Neato! These are Foraminiferans! Sign of a healthy system, lack of predators>
They have been there for months and seem benign, or maybe even helpful (eating algae?), though they do obstruct the view of the tank some. There are thousands of them in the sand bed, on the rocks, and on the glass.
They move very slowly...as indicated by some time-lapse video. The close-up photos were taken with a macro lens.
Can you provide any insight? Are they helpful? Harmful? Should I be concerned?
<No concern; are helpful... Enjoy them while you can, as changes in your system will result in their crashing population wise... other life becoming more dominant in time>
<Thank you for sharing. There's a bunch on the Net (even WWM) re: https://en.wikipedia.org/wiki/Foraminifera
Bob Fenner>

Re: Snails?     8/23/17
Excellent. Thanks for the info Bob!
<Welcome Ryan. BobF>

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