FAQs on Anemone Identification 45
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New Print and
eBook on Amazon:
Doing what it takes to keep Anemones healthy long-term
by Robert (Bob) Fenner
Small Green Anemone ID
We've had these small bright green anemones for some time now (hitchhikers from
an encrusting Montipora rock). But they've started spreading rapidly at the
start of this year. I initially thought they were majanos but none of the image
searches matched ours.
<I don't recognize these either>
When poked, they retract rapidly, first deflating as flat as possible before
curling in their edges.
They're such an incredible green (especially under pure blues) that the pictures
don't do justice. Though if they keep spreading at this rate I will have to
start culling. :(
<Thank you for sharing; and yes to keeping them isolated on their own
rock/bommie/s. Bob Fenner>
Tiny white anemone id 8/9/17
Hi, found this anemone climbing the glass, translucent white with white bands on
It is small about 1/4 inch when fully stretched out.
Should it be removed?
<Mmm; maybe... appears like an Aiptasiid... glass anemone. In too great a
concentration/population can be problematical... in terms of stinging other
life. OTOH, may be employed in a refugium as a nutrient exporter...>
Pictures from a usb microscope. Thank you. Tracy
<Thank you for sharing. Bob Fenner>
Re: tiny white anemone id 8/15/17
Hi Bob, Thank you for your knowledge! I'll move it to a spot where it won't
bother anything. - Tracy
Anemone identification. No pic
Hi! I’m new to the hobby, tank has only been running around 8 months. About a
month or so ago I noticed two little anemones growing on some rock. They haven’t
moved, split or caused any harm. I have tried to identify them but after
contacting lots of forums and Facebook groups opinion is split 50/50 on them
being either some kind of BTA or a majano. The advice on the latter is to wipe
them out but I would like a more definitive identification before taking drastic
action. I hope with your vast knowledge you will be able to advise me.
<Mmm; more likely Anemonia... or Glass Anemones... Do you have a photo to share?
Carpet anemones ID 8/11/16
Is it possible to please ID the anemone.
It came as a mini red anemone at a local pet shop but looks more pink.
shipment came from the US to South Africa.
There was no scientific name.
It's quite sticky like a carpet.
<...? Need a better pic... cropped, resolved. Have you searched, read on WWM
Re Actinarian ID? Do so.
Re: Carpet anemones ID
I have searched but could not find anything close to it.
It's only about 1/2 inch.
The first thing that comes to mind is a Ric but it's very sticky.
It's the closest I could get based on the size.
Thanks for the help.
<Well; these are better pix... and it does look to be a Stichodactyla species...
I'd LEAVE it at the shop till it expands a bunch... they should be treating it
w/ Iodide/ate, perhaps some glucose solution and a thousandth reduced spg... and
feeding it sparingly. Do you see elements of the pedicle? Any striations
on the surface tentacle arrangement?
DO please have a look here:
and the linked files above. BobF>
re: Carpet anemones ID
Can't see any sign of pedicle.
It does seem to have striations.
<Then my guess is on S. haddoni. B>
re: Carpet anemones ID
Is it possible to tell the species of Stichodactyla?
<?! Yes... Don't write: READ>
Baby rock flowers? Or pests? Hard to make out
I have about 10 rock flower anemones in my 100gal aquarium. I know for
certain at least one is make <?> because I have witnessed it releasing
reproductive material. About a week ago I noticed two tiny polyps on this
The polyps resemble tiny Aiptasia except they have shorter tentacles and a
bright green center. Yesterday I noticed there are dozens of them scattered
around the entire tank. I was finally able to collect one from the sand bed
for closer inspection. It is still difficult to tell exactly what it is. I
looks like a tiny rock flower but I was under the impression that baby rock
flowers stay at the base of the mother until they are large enough to crawl
away and I have a few of these little guys clear across the 100 gal long.
The one I collected into a Petri dish is VERY sticky. I touched it to see if
it reacted like a rock nem and it stuck to my finger instantly. Here are the
best pics I could get of the collected nem.
<Likely this or Anemonia. Bob Fenner>
nem? I.D. 4/28/16
I was wondering if someone could help me identify this animal. It appears to
be some sort of rock flower nem, but is missing some of the normal features
of a rock flower nem.
<Mmm; not this. Almost look like Zoanthids, but more than two rows of
They are about 1" across, do not appear to sting the corals around them, do
not seem to "walk" around, and do actively feed on mysis shrimp and other
If you could help me identify them, then I can be sure that I'm giving them
proper care. Thank you very much for your time!
<These appear to be some sort of Anemonia sp. to me. Bob Fenner>
Anemone ID... following directions?
Could you ID this?
<.... try retaking, and re-sizing your photo and re-sending. Is the pedicle red
HAVE YOU READ on WWM? Bob Fenner>
Hi All.... myst. "coral" bonus!
<Tab; twelve megs of pix? Groan>
I was searching for information on a mystery coral and came across your
I just set up a tank to start cycling and bought a live rock that
was taken from an old tank at the store. After getting it home we noticed
what looked to be a whitish slime on it going to rinse it off i noticed
opening thinking we had a stray coral i just put it in my tank. It has
recently opened more and i wanted to get it identified to make sure it
harm any other coral or fish i will eventually place in the tank. it has
only been in the tank for about a week.
These picture were taken within 20 min of each other
<Interesante.... in cropping, spiffing up.... this looks like a Haddon's
carpet anemone..... striated; uniform tentacles as small bumps uniform over
capitulum.... What say you? Bob Fenner>
Anemone Dream... ID, ? 9/3/15
Petco of all places has the most striking and healthy looking anemone I have
seen in a while. He is labeled as a sebae anemone but his appearance doesn't
seem to support this label. His foot is orange and large, bigger than
his tentacles when he retracts.
<Perhaps Heteractis malu>
And the tentacles are knobby kind of inflated with rich tones of maroon and
purple. Definitely not one suffering the bleaching effect. So I have decided to
devote 1/2 of my available tank space to this guys future, that equals out to be
a65gallon total volume. We have 2 Kessil 160s, the anemone side of the tank
would run the pendant at full intensity to try and accommodate his needs. My
tank tests 0 ammonia or nitrite, 5-10ppm nitrate, 8.2 ph, 480 ppm calcium,
<Too high. See WWM>
8 dKH, 1.025 salt content, 78 degrees F. I don't currently use any chemicals or
additives unless you see something amiss.
<.... the universe is comprised of chemicals, vacuum, energy, and if you'd like
to count it separately from chemical, free flowing protons>
I want to get him out of the pet store though so he doesn't begin to bleach. He
is phenomenal in his appearance. Understanding that these animals are unique
individuals this particular animal seems to have defied odds and I would love to
provide him with a safe, clean, healthy tank. Your expertise is always
cherished. Thank you.
<? See WWM Re? Bob Fenner>
Help with what this is.. 5/10/15
I was told you could help.. I'd like to be sure not Aiptasia. I got live rock
and hoping didn't end up with bad hitchhiker...thank you..
<Mmm; looks like a Glass Anemone to me... Do see/READ on WWM re Aiptasia...
Re: Help with what this is.. 5/10/15
Thank you for super fast response I will be taking care of this pest asap. .
<Ah, welcome. BobF>