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FAQs on Anemonia/Majano Anemones 2 Related FAQs:
Anemonia 1,
Aiptasia
Identification,
Anemone
Identification, Other Pest Anemones
Eradication by: Peppermint
Shrimp, Butterflyfishes,
Filefishes,
Chemical/Physical
Injection, Hypo/Hyper-Salinity,
Related Articles: Aiptasia/Glass
Anemones, Anemones,
Cnidarians,
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What is this? Anemonia majano – 6/18/08
Hi there,
<Hi Stacy>
I have some sort of anemone I think?
<You sure do. They’re pest anemones called Majanos that thrive and
multiply in systems carrying high nutrient loads. On the plus side, they
don’t tend to multiply as rapidly as Aiptasia.>
It has started to grow and I want to make sure it is nothing I should
remove.
<I would remove them.>
I also found an aiptasia yesterday and have never seen one in my tank
before.
<Uh-oh>
It has easily been 6 months since I have added anything to the tank and
2 years since I added the rock it's living on.
<There must have been one (or several) present/introduced, but were
previously out of sight. They tend to start popping up when conditions
became favorable. I would get rid of it ASAP.>
I injected it with reef calcium. I noticed someone said it would kill
it.
<I’m guessing you mean a Kalkwasser/water solution, not the Seachem
product? I’ve had good results with either a Kalk solution or boiling
water.>
It's still alive but I'm hoping. Is that common?
<For them to survive an initial “dosing”? Yes, it happens, especially
with the Majanos. You have to be very diligent with these guys. For more
information on both of these pests, as well as their removal, please
Google the terms majano and Aiptasia through our site:
http://www.wetwebmedia.com/WWMAdminSubWebIndex/question_page.htm
Here’s a link to get you started regarding Majanos:
http://www.wetwebmedia.com/anemoniafaqs.htm >
I'm attaching photos of the unidentified 'something'.
<Thank you!>
Thank you for all of your great help and information. Stacy
<You’re very welcome. Take care and good luck! –Lynn> |
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Ricordea under a rock
ledge... Maybe Majanos 2/5/08
Hi All,
I love your website! I have learned so much from it along with the book "The
Conscientious Marine Aquarist".
<Hello and thanks! Bob's book is great isn't it?!>
I recently acquired a 55 gallon reef tank set up with LR and LS. It was covered
with green hair algae that has now died off (amazing what decent water will do).
OMG the things that are now appearing on the rocks! I have discovered 3 Ricordea
under a ledge of the biggest rock and completely in shadow about 2-3 inches
above the substrate. Will they move to seek the light or should I try to move
them? If I need to move them, how should I go about doing it? Due to the angle,
I can't get a chisel in there to get them on a chunk of rock.
Thanks so much in advance. These are very pretty bright green little guys I
really want to help out.
Peg
<Peg, Ricordea don't usually just pop out on rocks. However, Majano Anemones do.
Here is some FAQ's...
http://www.wetwebmedia.com/anemoniafaqs.htm
These types of anemones pack a big sting and are not very well liked by aquarist
as they sting and kill corals. Google "Majano Anemone Pics" and see if they are
the same ones you have. HTH, Rich...aka...Mr. Firemouth>
Majano Anemones, control
1/6/08
Hello,
<Hi Eric>
I have a 180 gallon reef tank and my population of Majano Anemones is getting
out of control. I have been busy reading your site and now realize the cause of
it is most likely poor skimming. (Actually a separate problem that I have been
trying to fix but I didn't realize the 2 were related). Anyway my question is,
if I solve the nutrient export problem, will the current population of Majanos
start to die off? Or am I stuck with them unless I manually start to remove them
or find something that will eat them?
<Lowering the nutrient levels is not going to kill them, for sure. One thing in
your favor is that they are not quite as prolific as Aiptasia Anemones, but
still pack a potent sting and a nuisance just the same. Read here.
http://www.wetwebmedia.com/ca/cav1i3/aiptasia_impressions/aiptaisia_impressions.htm>
Thank you,
<You're welcome. James (Salty Dog)>
Eric
Aiptasia... ID, contr.
07/27/07
Hi there and thanks in advance for your assistance.
<Yes, but six times in one day? lol ;-)>
Could you please confirm that this is Aiptasia and that the best natural
way to rid the problem is a peppermint shrimp?
<Your pictures are really small and unclear. I'm not entirely sure those
are Aiptasia. If they are, as for "natural" solutions, it depends what
you consider "natural." Is NaOH natural? In any case, please see here:
http://www.wetwebmedia.com/marine/inverts/cnidaria/anthozoa/Aiptasia/aiptasia.htm>
Also if a peppermint shrimp is introduced to the system will it try to
munch any other corals?
<I highly doubt it. I've never heard anyone complain that their
peppermint shrimp have attacked their corals. However, they are
predators so I hesitate to say there's absolutely no chance of them ever
picking at a zoanthid or two.>
The basic pro's & cons if you can.
<Pro is that if you do get some shrimp that eat them, they can be quite
effective. Con is that not all peppermint shrimp will eat them.>
Regards K.
<Best,
Sara M.>Re: Aiptasia -
Majanos? 07/27/07
Once again sorry for the small pictures! Here's the original sized photo
to help.
<That does help, thank you. They look more like majano anemones to me.
Please see here:
http://www.wetwebmedia.com/anemoniafaqs.htm>
Also sorry for keeping you busy with all the questions, these questions
built up over time and I found the time to send them today.
<Ah, no problem. It's a rainy day here in Cleveland anyway. :-)>
Kind regards K.
<Best,
Sara M.>
Majano control 07/28/07
Hello wise one <lol>, and thanks that's great help. I've visited the link
you sent and browsed through it. I'm on the fence as to try to remove these
majano anemones or just let them be.
<Though I usually prefer things be left alone, Aiptasia and majano are
exceptions. They can become quite a nuisance very quickly.>
They are reproducing quite steadily and tiny new ones are appearing around the
LR. I must mention that when disturbed they retreat into a small luminous, semi
transparent green ball and reopen a few minutes later.
<Yep, sounds like Majanos.>
There were 3 big ones when I first got the LR in the tank and now there are
around 8 in total after a fortnight. Will they grow to be a huge colony of
pests?
<possibly>
Would a syringe and vinegar help as I read somewhere on your FAQ pages? What
would you do?
<Yes, many people have success with this method. If the vinegar doesn't work,
there are more drastic measures you could take (like a NaOH and Kalk mix). But
let's just hope the vinegar works. :-)>
Kind regards once again! K.
<De nada,
Sara M.>
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Majano Anemone ID –
10/11/07
Hi again guys,
<Hi Mike, Brenda here tonight>
I just wanted to thank you for all your help in establishing my first
reef set-up. I made a contribution on Amazon Honors; it's the least I
could do after all your help and money you've saved me at the local
store (and what I could have saved if I knew about the site sooner).
<Thank you for the contribution, and for your kind words!>
I recently purchased fully cured live rock with great stuff (e.g. many
Stomatella varia, red mushroom anemones). Could you help me ID this
particular critter? It is merely the size of a quarter, reddish stem and
mouth area, and tentacles are red and tipped with bright green. I
apologize in advance, but the attached photos were the best I could do.
<It is a Majano Anemone, a pest anemone. See here:
http://www.melevsreef.com/pics/bta/not/majano.html and here
http://www.wetwebmedia.com/ca/cav1i3/aiptasia_impressions/aiptaisia_impressions.htm
>
Thanks,
Mike
<You’re welcome! Brenda> |
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Anemone ID –
09/08/07
Hi WWM Crew,
<Chris>
I have an anemone that I cannot positively identify. It is an
interesting one that s really beautiful, but I am not sure what it is.
<Mmm... think I know>
Can you please see if you have any luck with this one. I have included a
picture. The white one is a Sebae (I know that one...lol), but the one
in front looks like a morphed Bubble.
<Yes...>
Please let me know your thoughts.
Thanks
Chris
<Is likely an Anemonia species... perhaps A. sulcata... maybe cf.
majano... on a few clues... the color and shape of the pedicle (base),
and shape and number of tentacles, and lastly position near the
Heteractis... BobF> |
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Unidentified
problem anemones? 7/30/07
Some guy gave me something he said was an anemone to give to my out
of town brother when he came in for a visit. When he came into town and
saw them he said "I don't want that #@*%" So I removed it from my
aquarium as well, or so I thought. These little critter are round with
tentacles and somewhat reddish and somewhat fluorescent green and they
procreate like a rabbit!
<Heee, Lagomorphs don't do scission... at least as far as I'm aware>
I now have an aquarium overran with these anemone looking like creatures
that are killing off my desirable corals and clogging up my plumbing and
pumps. I have a 90 g tank with a 20 - 25 g sump. I have a picture of
these creatures (although not that clear) I am attaching. I'm sure
others have had a problem with these if ever introduced into their tanks
they just take over everywhere. How do I rid myself of these pests? what
will eat them? Should I still consider this "guy" a friend? Should I
introduce this "guy" to flesh eating bacteria? Please help me! These
things are creating havoc in my tank.
Thanks in advance - Spence
<These are very likely Anemonia... cf. majano... Please see WWM re. Bob
Fenner> |
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Mystery Majano – 6/1/07
Alex (golly....twice in one week!),
<Hee! Hello!>
We wrote a few weeks ago about some mystery anemone in our tank.
However, the photos we attached weren't clear enough to get a real
idea of what they look like.
We hope the attached photos (close-up shot is vertical; horizontal
shot shows them in the lower right corner) are better.
<Yes, these are Majano Anemones. Search WWM and the web on that and
see. They are considered pests by some, but are not a problem for
others.>
They arrived about the size of peas on a rock with a coco worm
(still
there). There were three. A few weeks ago, one of them went on
walkabout to another part of the tank. <Not far I hope.> Yesterday
he split into two. <Yikes!>
We have had them since December. They are now the size of golf
balls. <Hmm, I don’t think they get any bigger than this. It sounds
like you have a very nice habitat for Majanos!>
Are they bad? Very bad? Perfectly good? <Badness is in the eye of
the beholder.> Our LFS does not know what they are. <Mine either.>
We don't really want anemones (too many coral). <Good point!> So, my
question is this: Which tank should house them ... fish or septic?
<Since yours are already multiplying and going on walkabouts, you
may want to remove them. I had one come on a new rock recently, and
decided to add him and wait and see. He is not growing quickly, and
I think he is cute. But there are plenty of people who have had them
become pests.>
Also, for your enjoyment, we have attached a photo of our much-
beloved "mushroom rock." <Very beautiful!>
Thanks as always!
Michael and Dianne
<Cheers, Alex> |
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Pomacanthus employment in ridding pest anemones 2/28/07
Thanks for the help as always,
<Of course.>
I have been researching Pomacanthus imperator as a possible candidate for
Anemonia majano control.
<Mmm...not my first choice.>
I read that other of the Pomacanthus species such as Pomacanthus E. navarchus
and Pomacanthus E. xanthometopon also may feed on these pests.
<They can and do at times but when there are filamentous algaes, microfauna,
other sessile invertebrates....prepared foods in the tank the animal is more
likely to opt for those. Like asking me or you to choose between a medium-well
rib-eye or room temperature okra. It's not near the top of the list, when it
comes to their diet make-up.>
What am wondering is: Is this information correct
<To some degree but see above.>
(is it probable that these angels will eat this anemone)?
<Possible yes, likely....>
If so, which ones are most likely to do so or have you heard do so?
<Of Pomacanthus angels, Pomacanthus imperator is probably the most likely, at
least this is what I was told on a chat forum a year or so ago by Steven Pro. I
personally have never employed them in this manor.. Pomacanthus Angels
themselves are not an animal to be taken lightly, bought at a whim. Require
large and well planned systems. Often suffer from shipping, handling, poor
environment, etc. .>
Any other suggestions will be great, thanks :)
<Read this:
http://www.wetwebmedia.com/ca/cav1i3/aiptasia_impressions/aiptaisia_impressions.htm
.>
Adam
<Adam J.>
Majano anemones. . . care? 12/6/06
Well, I've seen a lot of pages on how to nuke them, but none on how to Care
for them. . .
<Heeeee! Perhaps just to do "the opposite" of what is suggested for their
elimination?>
I was given a small majano by a local store. It has its own little 2 gallon
tank with some macro and some live rock.
<Actually quite beautiful animals IMO as well>
Right now I've got too much flow (I think. The filter is rated at up to 100
gph, yet is turned down as far as it will go) on there. So far in the week I've
had her really can't see a green and PINK anemone being a guy :) ),
<Watch this... or you may be/stay a "lonely guy" w/ matching ferns>
she's been hanging out on the wall of the tank on the opposite side of the
filter, soaking up the flow.
I guess for one, should I reduce the flow? If so how?
<I'd leave this as is. Is not too much... but get a larger system, soon.>
The filter is the smallest sort I can find, and the only other option would
likely be a tiny powerhead (would take digging to find) or an airstone of some
variety. Also, do I need a heater?
<Yep>
She hasn't shown any sort of negative effect from being in cool water yet,
though doesn't it supposedly take a while for them to show stress from improper
conditions?
<Not long at times...>
How much light would I need?
<Enough... see WWM re Anemone Lighting:
http://www.wetwebmedia.com/marine/inverts/cnidaria/anthozoa/anemonelightngfaqs.htm
"and the linked files above"...>
Also, what to feed?
<See... not much>
Not exactly a nutritious diet, but it seems like the biggest thing that tiny
mouth will take is a large Cyclops "micro crab" which is extremely tiny. What
else would be a good choice that is small enough that I wouldn't have most of it
rotting in the tank. Also, should I play with things a bit to try to get a bit
of a higher content of dissolved stuff an extra pellet to rot on the bottom for
instance), or how often should I feed her? Last question: is there any sort of
cleaners I can have in such a small tank?
<Best to cut up something marine, meaty into very fine bits, put this in
suspension, turn off the filter, and squirt this with a turkey baster
into/towards the anemone... once, twice a week... Are variably photosynthetic...
Bob Fenner>
Majano/Aiptasia Removal 11/8/06
Good evening (at least it is here in TX.); <Evening> My question revolves
around 2 pest anemones. I am currently in the process of cycling my new 110
gal., corner overflow, that is using an old wet/dry trickle filter as a
sump/live rock design of my own (no bio balls or ceramic, I just want to use
live rock, DSB). My question is, I have recently spotted a Majano anemone, and a
few Aiptasia anemones in one of my other tanks (thanks to WWM for helping me ID
these bad boys!). I want to remove the live rocks that these "pests" are on and
put them in my sump for the 110 gal. to help cycle it and act as a filter. My
question is two-fold 1. Will these "pests" invade my main tank if they are in
the sump? <Very possible.> and 2. Will live rock in a sump require a lot of
lighting to be an efficient biological filter? <No light needed for biological
filtration, but a little might be nice for some algae.> Thanks in advance,
Erick..
<Chris>
Erick Swanson
Majano Anemones 10/29/06
<Hi Scott, PufferPunk here>
I posted a similar message on a local forum and your site was
recommended for help. I bought a few rocks from another reefer that had
quite a few "green Aiptasia/zoos". I thought they were interesting and
not a pest until they started spreading to other rocks. I have since
moved the rock into another tank that doesn't mind them but I want to
get rid of them from my tank. I was going to try Joe's Juice first and
then some peppermint shrimp. From reading other posts, I am guessing
this is a form of Aiptasia but I
wasn't sure because I haven't seen a pic of anything like it. What do
you think?
http://i126.photobucket.com/albums/p83/Mullins1420/100_0889.jpg
<Those are Majano anemones. These pretty little anemones come with a
bad attitude. They can quickly reproduce and will sting anything they
come into contact with. Therefore, most reefers choose to eradicate
them. Too bad... they really are pretty. Best way to rid your tank of
them is to remove the rock they ore on. They will take over your tank &
wipe out most of your corals. ~PP>
Thanks for the help, Scott |
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Not Bubble-Tip... Majano Anemones! 10/15/06
Hi there EricR.
<<Hello Tree>>
Thanks for your response.
<<Quite welcome>>
I gathered some of my anemones and took them to the pet shop, they told me they
were "Majano" anemones.
<<Yikes! An unwanted pest for sure...>>
I looked them up, mine look just like them, and found one site were the guy said
they were the "Tribbles" of anemones.
<<Indeed they can be...and killing all in their path>>
Seeing how fast they multiply I have to agree. I had three on the tank glass
and within a week ended up with eleven.
<<Can be very difficult to eradicate>>
All of the glass inhabitants have been moved. I set up another tank system just
for them.
<<Interesting prospect>>
If they survive, which I'm sure they will, within a few months maybe I'll add
some sexy anemone shrimp.
<<Have never heard of these shrimp taking up with Majano anemones...do let us
know how this fares>>
In the meantime, any that stray on the glass are being transferred and the
largest concentration of them on one of my rock pieces will be transferred into
the tank also. I know it will be ongoing to eliminate them from my main tank
but I'm willing to try.
<<Is all you can do>>
Even though they eliminated some of my mushrooms I can't really eliminate them.
<<First I've heard of someone setting up a species tank for Majano
anemones..."Kudos" to you for this...interesting creatures in their own right>>
Thanks, Tree
<<Regards, EricR>>
Majano Anemone Question 11/9/05
Dear WWM Crew,
<Ivy>
I have a 3.5g Nano tank, and recently acquired at a frag swap, a beautiful Green
Pink Anemone. Now I know I have come to the conclusion that is the pest anemone
the Majano, but I could not bring myself to actively kill it since it is quite
large (2 inches across) and quite beautiful. (I also feel guilty)
<No need>
I have been advised to kill it immediately as it could spread,
<Ridiculous>
however I have kept it for 3 months now, and it has not produced any clones. I
figure if it will not spread, and is easy to keep alive, it might be a good host
for my inverts.
<Mmm>
My questions are..
a.) Will Anemone Shrimp, and/or Sexy shrimp be able to host in a Majano?
<Possibly, though not likely>
b.) Will the Majano grow much larger?
<No>
c.) How bad is the sting of the Majano on corals such as Zoos, Frogspawn,
Hammers, mushrooms, GSP.
<Not a big winner over these (quite the opposite generally), though best to keep
separated...>
d.) What is your opinion on keeping it in my nano?
<A beautiful animal that will make a worthy addition>
I have attached a picture of the Anemone.
Thanks, Ivy
<Cheers, Bob Fenner... "a weed is a plant that a use has yet to be found for">
Re: Aiptasia or something else?
Thank you for the quick response. If I understand you correctly, you believe that this is an
Anemonia species, not Aiptasia, which although it can spread like Aiptasia if there are poor tank conditions, can otherwise be contained and enjoyed.
<Mmm, could still be a Glass Anemone species...>
I looked at several different sources and while there are certain pictures of Anemonia cf. Majano that look similar, most of the pictures seem vastly different to me. The majority of the pictures of Anemonia cf. Majano appear to have more tentacles than the animals in my system. (I am basing that comment on the number of observed tentacles more than the tentacle position as depending on if the animals are open or "shut" the tentacles can appear different.) Furthermore, it appears that some of the pictures have a bulbish shape to the tentacles, while others are more rounded. Is this just a bit of diversity in the species or the hallmark of different species of Anemonia?
<Both>
Another question that developed as a result of my research is the fact that most of the accounts regarding the Anemonia species states that they tend to move towards the light. I have only had 2 of these animals move and in both instances it was away from the light. One going to the underside of a piece of rock for a few weeks before moving to the side of the same piece. Another just moving lower on the rock, away from the light. This seems to be contrary to everything I read, especially since I am running currently running a low light system (6500K NO T8 50/50 bulb while I am waiting on getting my ballast fixed)
<Depends on the quality, intensity of light...>
Finally, all of the literature seems to state that the Anemonia sp. all have a powerful sting. As I said in the
initial question, I have witnessed multiple contacts between these animals and the other inhabitants of my tank. That fact does not make sense to me in light of what the literature states.
Thanks again.
Art
<Your mileage may vary. Bob Fenner> |
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