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FAQs on Identification of Stinging-Celled Animals 29

Related Articles: Cnidarians, Water Flow, How Much is Enough,

Related FAQs: Cnidarian IDs 1, Cnidarian IDs 2, Cnidarian IDs 3, Cnidarians ID 4, Cnidarians ID 5, Cnidarians ID 6, Cnidarian ID 7, Cnidarian ID 8, Cnidarian ID 9, Cnidarian ID 10, Cnidarian ID 11, Cnidarian ID 12, Cnidarian ID 13, Cnidarian ID 14, Cnidarian ID 15, Cnidarian ID 16, Cnidarian ID 17, Cnidarian ID 18, Cnidarian ID 19, Cnidarian ID 20, Cnidarian ID 21, Cnidarian ID 22, Cnidarian ID 23, Cnidarian ID 24, Cnidarian ID 25, Cnidarian ID 26, Cnidarian ID 27,  Cnidarian ID 28, Cnidarian ID 30, Cnidarian ID 31, & Anemone ID 1, Aiptasia ID 1, Stony Coral ID 1, Mushroom Identification, Soft Coral ID, Alcyoniid ID, Xeniid ID, Cnidarians 1, Cnidarians 2, Cnidarian Behavior, Cnidarian Compatibility, Cnidarian Selection, Cnidarian Systems, Cnidarian Feeding, Cnidarian Disease, Cnidarian Reproduction, Acclimating Symbiotic Reef Invertebrates to Captive Lighting,

Polyp identification     8/5/12
Hello there WWM crew. I have had this group of polyps for over a year now but have watched them grow for years on a friends tank. They do not seem aggressive as they are growing in a few areas of my tank with no damage to date. What I would like to know is what are they?
<I do think this/these are some sort of Zoanthids>
Largest polyps are around 3 in, they have buds not tentacles and split rapidly. Please let me know where they are from, scientific name, common names, and reference to a care sheet if possible. I have searched many ways to find out what it is and have shared frags and am sure all of us would like to know. Thank too very much for your help
<Please read here: http://www.wetwebmedia.com/zoanthid.htm
and the linked files above. Bob Fenner>


Couple of hitch hikers torch coral with host? possible anemone 2/10/12
Hello Bob and crew!
I have a client that bought an Australian gold torch coral from me and has informed me that it has a buddy hanging out in him! This is the first I've seen since importing these beauties and had him take the best pick of the little guy he could. I know the pic of the torch is a tough one to see the shrimp, my client has said he is clear which makes sense in the picture but most visible is the white V staring right at the camera.
<Yes; I see this. Some species of Palaemonid... likely a Periclimenes sp.>
Please find him attached and while on the hitch hiker topic I've attached a pic of another guy I'm guessing is a type of anemone that came in on a Zoanthid rock from Kupang!?
<Got me... but IS neat!>

I have heard the sexy shrimp will host to the torch,
<Some definitely do. Have photographed them numerous times in the wild on Euphyllias>
any education you can give me is much appreciated on both of these guys. As always WWM is and I refer to clients and everyone in the hobby the best place for information, so much I even have a link to you on my site! Hope Bob can make it to Denver again soon!
<Wish I was there right now! W/ my flannels on of course!>
Mike Snyder
www.thecoralshop.com < http://www.thecoralshop.com/>
<Welcome. BobF>

Re: Couple of hitch hikers torch coral with host? possible anemone 2/10/12
Thanks Bob! You'd need your flannels for sure!! Pardon my ignorance on the Periclimenes safe to let him hang out in the torch within my clients display?
<Indeed it is... there are valid arguments for the positive effects of these relationships... to all parties. BobF>

Strange coral growing on live rock identification please 1/25/12
<Hello Chris>
I have a 55 gallon reef has been setup for about 2 months I have been noticing this what seems to be coral growing on my rocks. It grows rather quickly I was wandering if you could help me Identify it. Thank you for any help you may offer. Sorry about the poor picture took it with my phone.
Tank info 55 gallon rectangle 60 pounds live sand 90 pounds LR all bought at the same store(different days) water parameters are good all coral are doing well.
<Pic not resolved enough to see much detail but it appears to be a Sarcophyton of some type. Bob may input here as well. James (Salty Dog)>

Porites? RMF

Re Strange coral growing on live rock identification please 1/26/12
Here is another picture still not very good but it's hard to take with a phone. Thank you for your input this coral seems to spread and grow very quickly. I'll try to get a better picture for y'all guys again thank you.
<Are you referring to the Zoanthid colony in the lower part of the picture.
If not, our reply remains the same. James (Salty Dog)>

Invert IDs and filter approval? 12/18/11
Hello Everyone,
<Hello Dale>
I'm not even going to guess at pic #4274 spitting cob webs. But I'm more interested in the possible stinging Anemone looking thing in the center of pic #5415. It is a LR hitchhiker in my 8 month old 120g FOWLR. I have IDed everything else with your site. Much appreciated btw.
<The "stinging anemone" appears to be a solitary Xenia polyp and under good conditions it should multiply for you. The other photo appear to be a Zoanthid, a little too fuzzy to ID accurately.>
About a home-made filter. In my 30g Sump (water level is about 8"), I was thinking of building a 5"x15" pvc tube capped at bottom with drainage holes all around at lower 3", filled with Arangonite <aragonite> 1-2mm with a particulate filter on the open top, dumping all my return water into this. Most water will flow over but would I get any type of benefit from this?
<Is this going to be easy to clean?
Eventually debris will build up on the aragonite and restrict flow. Sounds like more trouble than it's worth.
Live rock alone in proper amounts will provide all the nitrifying bacteria you will require. I'd consider a filter sock if you wish to trap debris/uneaten food, etc.>
How would anaerobic bacteria get there if I didn't put it in there?
<The bacteria will find and populate the aragonite.>
I have only 2.5" of sand in my tank and don't really want a DSB. Thanks Guys!
<You're welcome. James (Salty Dog)>

Corallimorph or Rhodactis... no reading 11/27/11
> Hello,
> I am not real sure if this site is still up and running
but I ran across it in my attempt to identify a hitchhiker I have watched grow from nothing to the size of a silver dollar. I have searched for months. In the beginning our aquarium store thought it was an Aiptasia,
<Nah... seems/appears to have a stony skeleton...>
but all my research disagreed with this. I now believe it is a type of mushroom.
<See above>
It has a mouth, is very fleshy and loves shrimp. However, it did (or at least I think it did) kill my Pulsing Xenia's. This site pointed me in the direction of Corallimorph or Rhodactis, but I still can't confirm.
<... Rhodactis is a genus of/within the Corallimorpharia... Had you read as we ask... Now do so: http://www.wetwebmedia.com/cnidaria.htm>
> Any assistance in identifying this lil feller would be greatly
Thank you,
<This appears to me to be a young Fungiid. See WWM re. Bob Fenner>

Re: Corallimorph or Rhodactis 11/27/11
I appreciate the time and effort you took to reply to my email.
(I did scour the internet, and WetWebMedia, including the site you directed me to, prior to my email.)
I hope you had a great weekend.
<So far, thanks>
<Thank you for the vino! BobF>

Anemone id 9/21/11
Good evening all,
<Hey Gabe>
I purchased an anemone that was a bit bleached but had some significant bubble-ness. (it was in an outdoor tank, and we were in a heat wave) It was approximately the size of a quarter. Anyway, I was able to nurse it back to health, fed it regularly, and it eventually split. (See picture)
However, it was only marginally larger than a quarter when it split, and now both are approximately the size of a quarter. (see picture) I asked my local coral farm (where I bought it from) about this, and the proprietor said they were of a species of e. quadricolor
that has never been categorized, but was a type of pygmy quadricolor.
<"Dwarf Bubble-tip"...>
He receives them from local reefers who grow them out...he said they split more commonly than larger btas, and assured me that they are not majanos...which I didn't mention I was suspecting.
<Me too>
Have any of you (in your vastly more infinite knowledge than mine) ever heard of such a variant?
<I have not; though have seen many instances in which Entacmaea were "dwarfed" by conditions>
As I said, when I first got it, the tentacles looked exactly as pictures of btas, but since then they are more elongated, but sometimes have a "lumpy sausage" look at times, particularly after feeding. Need I be worried about these anemones?
<Not likely, no>
They have been model citizens to this point, only wandering a short distance from where they split. Any and all information is greatly appreciated!
<Don't know more... but perhaps others will chime in on seeing your pic, message. Do look for it's posting on the Dailies and ultimately the Anemone ID FAQs on WWM. Bob Fenner>

new anemone cannot find info about 9/17/11
<Hi there>
My name is Brandy Pockrus. My husband and I have recently come into the saltwater hobby and love it. We started with a 29 gal Bio cube 5 months ago and are now cycling a 150 gal tank. We have been buying a few extra things this past week, since the 150 will be finished soon and we can transfer stuff over. Currently we have the 29 gal Bio-cube without modifications. In the tank is 2" live sand, about 35 lbs live rock, two small-medium (1.5"-2") maroon clown fish hosting a small bubble tip anemone, one small blue hippo tang (3.5"), one fire shrimp, one coral banded shrimp,
<Do keep your eye on the Stenopus... predaceous at times>
two peppermint shrimp (added for apthasia problem), and one Goniopora.
<Umm, not easily kept period, and incompatible w/ anemones, esp. in small volumes>
Lots of coralline algae is present. The bubble tip is not doing so well.
About a month ago, we had a fire shrimp and he came across the anemone just after molting. I came home to the shrimp half sticking out of the anemone. I pulled the shrimp out and the anemone has not been the same since. He does not eat
well and just looks like poo. LFS does not think it has anything to do with me pulling out the shrimp, but nothing else has changed. This is the only negative experience with the tank. Water conditions, pH-8.0, Ca-380, Phos-0, Nitrate-0,
<Second issue... chemoautotrophs/"corals" need appreciable NO3, HPO4...>
Nitrite-0, SG-1.0245, NH3-0, KH-179, Temp-80-82F.
So, the real reason I am emailing you is our newest addition as of yesterday. We were told he is a ball-tipped anemone from Indonesia who is very rare.
<Mmm, even more problematical to mix anemone species in small volumes>
According to the LFS guy, who has had saltwater aquariums for 20 years, he has never seen one in person before. I cannot find anything about this guy. The closest I can come across is Pseudocornactis sp. and Corallimorpharia.
LFS suggested I send a picture to you to find out more.
I just want to understand the little guy. Is he really as rare as they say?
<Have not read much re>
Does it need anything special? I was told just to feed him a few times a week with meaty food and that he should not bother any inverts. He does not seem to move very much, is there somewhere special I should place him in the tank?
<I would move all the other Cnidarians ASAP to the new system...>
Low light, high light, low flow, high flow. I do not want another poor anemone experience and want to make sure this guy hangs out for a while.
Thank you for your time
<Mmmm (one last time), I would read re allelopathy, here:
and search the site re anemones and their chemical compatibility in particular. Bob Fenner>

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