FAQs about "Freshwater" Morays Eel
"FW" Moray Eels,
Behavior, FW Moray
Compatibility, FW Moray
Selection, FW Moray Systems,
FW Moray Feeding, FW Moray Disease, FW Moray Reproduction,
Related Articles: Freshwater Moray Eels by Marco
Lichtenberger, Freshwater Moray
Eels, Moray Eels, Other Marine Eels,
Re: Brackish moray ID 1/4/17
Allow me to continue our discussion,
I am thinking about other possible moray species that matches my eel,
which are not Echidnas nor Gymnothorax.
In Fishforums.net a poster listed some species of morays that enters
brackish & freshwater (I think this was quoted from WetWebMedia ;) One of the
species mentioned, Uropterygius micropterus, is interesting, because when I see
this picture here:
<Not sure this is Uropterygius micropterus, but it's possible. Too bad
the dorsal fin is not visible on the picture. Uropterygius micropterus has a
light brown background color with a net of darker lines (see Fishbase).
Gymnothorax richardsonii has a more greenish color with a dendritic
pattern. All Uropterygius spp. have a low dorsal fin limited to the area of the
tail, while Gymnothorax spp. and Echidna spp. have a higher dorsal fin that
starts behind and above the gill opening. The genera can easily be told apart
with the eel in front of you by this character.>
Some of Mr. Eko's eels which he keep in his other brackish tank has the
same patterns on the body with the Uropterygius Micropterus in the Chinese link
above, though the coloration are different, that eel in the link
above are more dark brown, while Mr. Eko's eels are more grey-ish brown
(except the one he gave me, it is green-ish brown).
<Compare to G. richardsonii, especially have a look where the dorsal fin
All of his small (<30 cm) eels he said were caught in brackish river,
while the larger marine ones were from coral reefs around small islands. Price
differences also reflect this, the colorful fully-marine morays costs a lot
more than the small brackish ones.
BTW, the small eel just ate a piece of thawed frozen shrimp. Interesting
how fast it adapts with my aquarium, just a few days and it already ate frozen
meal (smeared with garlic, thank you for your advice!), while my smallest E.
rhodochilus still refuse anything else than live meal, even after living here
Well, that concludes my observation today. Thank you for your kind
attention & have a nice day!
<Have a nice day, too.>
Best Regards, Ben
Re: Brackish moray ID 1/11/18
Warm greetings from Indonesia. How's Germany today?
<Warmest winter I remember.>
I observed the eel and see no visible dorsal fin that starts above the
gill opening. So there is a possibility that this is an Uropterygius eel instead
of a G. richardsonii or E. rhodochilus?
<If you don't see said dorsal fin on the eel in question, but you are
able to see it on your Echidnas, the mystery moray likely belongs to the genus
Uropterygius (Anarchias would be another option).>
<Sorry Ben, I can't make out any detail in the vid, it's too dark and
blurry. You should use some additional light source when taking pictures or
Thank you and Best Regards,
<Have a nice day.>
Re: Brackish moray ID 1/12/18
Nice to hear that your winter is warm, I hope this is good for your
<I don't think they care. It's the same temperature in the house and
their tanks all year round.>
Sorry for the bad quality of the film. I hope to borrow a better camera
later, to take a better picture of my eel, or a cell phone with a strong
<This would be good. Maybe we can get a proper ID instead of just
In any case, if my eel is actually an Uropterygius micropterus as I
assumed, it is already 20cm maybe more, so I guess it's near adult (not baby eel
anymore), as maximum length of this species is 30cm (according to Fishbase).
So, if it's really U. micropterus, then we confirm what Fishbase said is
correct (that it is both brackish and marine). It also seems to be happy in its
1.008 sg aquarium, and are very docile in temperament, it is very
friendly with the E. rhodochilus and G. polyuranodon, no aggression
<Good to hear.>
When I am back to Sumenep, I'll ask Mr. Eko in which part of the river
he captured them: Was it at the river mouth, or further inland, did he used a
submerged trap or did he picked them up in shallow waters. This way we could
have some more info about the habitat of the eel.
<That's a good idea. Most of such useful information is lost with
export, it's great you are close to the source.>
Too bad this species is not so common as pets, as I think this eel could
be one of the easier ones to keep. It is not as pretty as E. rhodochilus, G.
polyuranodon or G. tile, but it is not so hard to feed and not so shy, mine
seems to spend almost as much time swimming outside the pipes as waiting inside.
It also does not run away from my hands when I am cleaning the aquarium,
<Yes, especially since Uropterygius species in general are reported to
spend most of their lives hidden in rocks and mud, but to be honest: not much is
known about the behavior of members of this genus at all.>
Well, thank you and have a nice day!
Best Regards, Ben
Re: Brackish moray ID 1/17/18
Good evening Marco,
<Good morning Ben.>
Greetings from Indonesia!
I am aware that there are not much information about fresh and brackish
water morays, so indeed, as an eel-enthusiast who lives close to the
source, I'll share whatever information that I can gather from around
<Kudos to you.>
As for our mystery eel, I visited Mr. Eko this afternoon, and asked him
a few questions about the eel. His answers are as follows:
1. The mystery eels that he has, were captured in the river in Java, a
bit farther from the river mouth (estuarium), but he said this species
are also known to inhabit not only on the river, but also the area
around the river mouth and the beach. So, they can be found in both full
saltwater and light brackish. They are from shallow waters, usually
found in sandy beaches hiding in broken corals or under clamshells, or
in the soft mud of the rivers.
2. They are known to hunt crabs and shrimps on the shallow waters of the
beach and rivers. They can burrow their bodies in both soft sand and
mud, but they are more active in swimming around, than other types of
morays which spent much of their time burrowing or hiding. They could
hunt during the day or during the night as they please.
3. These eels were usually not captured by fishing hook, but by
4. They are not territorial, plenty of them can be found together in a
small area, often bunched together under a clamshell or a rock, like
So I thanked Mr. Eko for his info, and he promised to inform me if there
are any other strange eels he captured or obtained. Before I left, he
offered me to buy a pike conger baby at discount, as apparently he has
one left. He told me that the pike conger were captured in the same area
where they captured the mystery eel. But I declined (pike congers are
known to be aggressive and has sharp teeth), and instead I bought
another mystery eel from him.
So now I have two of these "mystery eels", I hope they will be happy in
my aquarium. Mr. Eko took pictures of the conger and the second mystery
eel, I attached it here. His shop is not as dark as my kitchen, so maybe
these pictures are better for ID ing the mystery eel?
<Yes, much better. Can't see details of the head, but at least the body
coloration is visible. It's definitely no G. richardsonii, G. tile, E.
rhodochilus, G. polyuranodon. The coloration of the body matches
Uropterygius micropterus quite well, so this ID is probably right. The
ecology you describe above also concurs with what is known about this
species. Only that it seems to live so openly is something I had not
expected from a Uropterygius species. I think this eel can be added to
the list of moray species in captive care.>
That concludes my e-mail for now, I will share to you more from my
research when I get new information.
Warm Regards, Ben
a bunch of morays in a bucket 12/28/17
Hello Neale, hello Marco, hello all,
Warm greetings from Indonesia to all you amazing people at WetWebMedia.
So, I visited an ornamental fish procurer, the one who actually captured the
fishes. I asked for fresh or brackish water morays. He showed me a bucket full
of eels that he captured several days ago from a river in the
north of Jakarta, not far from the estuarium river mouth.
Here are the pictures of the eels.
So, which one is Gymnothorax Tile? I can recognize one tiny Echidna Nebulosa,
but the rest of them I have no clue. I am not even sure that they are all
morays. The guy who captured them all made no distinctions, all of those eels
are "Belut Muara" to him (Belut Muara = eels being caught in brackish water).
<The pictures show too little detail for a proper ID. Would need to clearly see
the heads of most of the eels. As you already know there is E. nebulosa and
probably G. richardsonii. There might also be one (the grey eel with tiny spots)
or two Gymnothorax pictus, which are easily IDd by the dark spots in their eyes.
However, I cannot see the eyes on the pictures.
Gymnothorax tile are grey to brown with yellow the golden speckles. The older
the eel, the less golden speckles. See here for some pictures:
Young G. tile look like this:
The pictures you mailed of Mr. Septian's eels also show some G. tile and one
potential G. pictus. >
Thank you & have a wonderful day!
Best Regards, Ben Haryo
<Hope this helps. Marco.>
Brackish moray ID (file size fixed) 12/30/17
Hello Bob, Neale, Marco, and all my WetWebMedia friends, a good Friday for all
(Dear Bob, sorry for the large files, my bad. I have re-sized the file and
re-send the message. I hope this time it's in the correct size. Sorry for the
Marco, thank you for your kind explanation. Brackish water is fascinating, isn't
it? I like the concept of brackish and near-freshwater estuarium as nursery
ground for various juvenile marine moray species, so they could get the
nutrients from freshwater and cover to hide from marine predators. Our estuarine
waters are indeed dark and muddy in many places, unlike the clear bright waters
of the coral reefs just a few kilometers at the open shore.
I have made plans in the future to visit some of those estuaries & rivers in
North Java and in Yogyakarta & record their salinity levels & record the tales
about morays from local fish catchers.
<Nice. If possible compare the salinity at the bottom of the estuary with the
surface. Can be quite different.>
I will keep you informed.
I am also interested in marine aquarium, but maybe later when I have more space.
Space is a problem for me as I cannot find place in my house for another
aquarium. I often found myself donating my pet fishes to other friends, not long
ago I donated my Anguilla bicolor to a friend who has a larger aquarium, as it
has grown almost to 1 meter in length & looking very stressed & cramped in mine.
It had spent almost 3 years in my aquarium.
Currently I am also looking for a new home for my Monopterus albus, it has grown
to 70 centimeter and has shown signs of stress, before it's very active, now it
became lethargic, often perched itself on top of the filter (glad my aquarium is
covered!) or bury its head on the sand (glad the bottom of my aquarium is sandy,
not gravels!). I have
donated other fishes in the past as well.
<You seem to like all eels, not only morays. As far as I know, M. albus does
travel into brackish waters, but prefers freshwater in the long care (and
Well, today I went to my hangout at Sumenep, where fish lovers hang around.
I visit my friend Mr. Eko, a specialist of brackish water fishes. Not only
catching fishes in our estuarium and rivers near the sea, he also quarantine
them and acclimatize them then supply them to ornamental fish seller. He has
cement pools for this purpose, as well as various brackish, fresh and marine
aquariums. He is an aquascaper too. He showed me his lovely Echidna nebulosa,
which is very fat and is an adult (about 50 centimeters). He proudly told me
that he kept this eel for almost 2 years in this brackish water, and describe
how the Echidna survived a jump out of the aquarium for 2 hours! It's the best
eel for aquascaping marine tank, he said, because of durability, docility and
beautiful skin patterns. His tank is about the same size with mine, but mine is
a bit longer. I sampled and tested the water on the E. nebulosa tank with my
hydrometer, it's 1.012-1.014 after 3 tests. He told me that it was originally
the water from the river where the Echidna came from, but he does regular water
changes to acclimatize the eel. His aquarium does not look so appealing, with no
sandy bottom and only a handful of dead corals for the hideout of the Echidna.
But the Echidna does looks healthy. I wonder how that's possible, as to my
knowledge, E. nebulosa cannot survive anything below 1.018, so is this an
<Surviving and thriving are two different things. E. nebulosa are very hardy and
it's not the first time I hear it was caught in brackish waters.
1.014 is already mid brackish to high brackish. It's well possible the eel will
survive this for months or a few years, but nothing I can endorse for permanent
care based on the biology of this species.>
Knowing my love for eels, he showed me a low-water aquarium full of small eels,
he said they're totally brackish. I sampled the water and it's 1.008 - 1.010
after 3 tests, so rather similar to my aquarium. I asked about the Latin name of
the small eels and he said he has no clue (kind of expected).
So he gave me one, and asked me to study the eel and tell him what species it is
according to science, and I can give it back to him later. It's very very small,
maybe only 15 centimeter, and when I put it on my tank, it looks comfortable and
it snuggled itself under my largest Echidna rhodochilus. They looks compatible
in the pipe, they're almost the same in color and I noticed it also has white
blotches on the mouth. Is that a juvenile E. rhodochilus?
<Probably. Can't be sure. The pictures are rather blurry and dark.>
I look at Fishbase and noticed that Echidna leucotaenia also has white blotches
on mouth. What do you think it is, dear Marco?
<Based on what I see: E. rhodochilus. Echidna leucotaenia has more and different
Well, thank you for your time & have a nice weekend!
<No problem. Have a nice weekend, too.>
Best Regards, Ben
Re: Brackish moray ID 12/31/17
Hello Marco, I hope your weekend will be a splendid one!
When I look at the "mystery" eel and how similar it is to E. rhodochilus, I
think there is a big chance that you are right. The morphology are similar with
my larger E. Rhodochilus, and they even breath in the same rhythm.
<You can try to take better pictures (more light, acuity, more detail of the
head) of your mystery eel. Then we can work out a better ID. The last pics were
so dark and blurry, I can only guess its ID by a white spot I suspect. E.
rhodochilus is easily IDd by its uniform green to brown coloration and a larger
white spot at the rear part of the lower jaw which extends to the upper jaw
below the eye.>
What are other possible candidate? Maybe G. richardsonii?
<G. richardsonii can be IDd by a dark green dentritic pattern on a lighter
background color. Looks nothing like E. rhodochilus.>
I just read in a webpage that this species stay small, and also inhabit
estuaries. Will G. richardsonii thrive in 1.008-1.010?
<I doubt it. Though it does occur in shallow waters with brackish salinity it's
most often found in marine lagoons as far as I know.>
Are they as docile as E. rhodochilus throughout their lives?
<I kept G. richardsonii in the past. Mine could not be trusted with small
fishes, but got along well with other small morays.>
As you can tell, I like eels, not just morays. Actually Mr. Eko offered me one
of his newly-caught pike congers, the one with lovely blue-ish dorsal fins. Very
beautiful fish, but I heard it's rather vicious when wild-captured, so I
Back to our E. nebulosa. Mr. Eko told me that small E. nebulosus are frequently
being caught in the estuarium, while the larger ones are more common on coral
reefs and on rocky beaches. Maybe it's like what you said,
the younger ones hides in the estuarium, as they grow older and bolder, they
venture to the sea. If that's the case, then it's a humane practice to keep them
in full marine, as brackish is only a temporary hangout for them.
<I agree with that.>
Well, thank you for your kind patience and guidance. I will keep you informed
about my findings. Best Regards, Ben
<No problem. Looking forward to your findings. Cheers, Marco.>
Re: Brackish moray ID (file size fixed)
Good Day Marco,
I tried to take better pictures. This eel seemed to change colors
depending on its surrounding.
I hope these pics are clear enough for IDs.
<I fear they are not. I cannot see the coloration of the head and the
pattern on the body with enough detail.>
This eel and his friends were caught in a brackish river in north Java,
and has been living in a brackish tank for several months.
<Does your eel have the telltale white spots of E. rhodochilus or the
dendritic pattern of G. richardsonii? You can also compare your eel to
the ca. 65 species found in Indonesia here:
If you try to take pictures again use much more light (will also help with
sharpness) and maybe borrow another camera.
Thank you & Best Regards, Ben
Re: Brackish moray ID 1/3/17
Good day Marco,
Sadly you are right, I cannot get any better quality pictures with my current
cell phone. Also, my kitchen _is_ dark. Good for the morays, not so good for
photography :/ So, I will try to find a better equipment to make pictures. I can
take the eel out , bring it outside and take pictures, but I don't have the
heart, it's such a cute little eel... When I can borrow a better camera or cell
phone, I will make pictures again.
I checked out the Fishbase list and also this article below:
I observed the pictures of Bakasi (G. richardsonii) on the article above, indeed
the color and body-patterns are not similar with my eel. The Bakasis has
brownish and grayish color and beautiful body-patterns. Mine are plain.
Also, the Bakasis are described to be caught on the coastal areas.
<Also known from estuaries when young.>
Mine are caught in a brackish river, several kilometers from the sea. My eel has
the same body type and color with E. rhodochilus (brownish green/greenish brown)
but it has no white blotch on the cheek, just white blotch on the mandible. Most
logical explanation that it's a freak baby E. rhodochilus that has white blotch
on the mandible only.
<Probably E. rhodochilus if it's uniform brown to green with a single white
Or it's another species that happen to live in the same environment & behaves
similarly & has the same color.
Anyway, Mr. Eko said I can keep the eel for as long as I wanted, see if it could
live well and happy in my1.008 sg. If it thrives, he will let me have it. If it
doesn't look happy, he will take it back. So it's a good deal.
I joked to him, If it's a new species, I'll name it Muraena ekonii after him ;)
The Fishbase article is very useful, thank you for sharing! I have seen some of
the morays described there. Interesting that Fishbase mentioned some morays as
living in both marine and brackish (like Gymnothorax pictus)
and even all three environments (marine, brackish and freshwater) like the
Gymnothorax meleagris. Maybe most Gymnothorax species
<and many Echidna spp.>
are capable to enter brackish and freshwater from the sea, but not all has the
adaptability to thrive long-term in non-marine environments.
<That's what I think. Especially the young, the adults not so much.>
Well, thank you for the advice & discussions, I learn something new everyday!
Best Regards, Ben
Marble Moray Eel (Anarchias
seychellensis)... ID, sys... NOT FW
Two days ago I purchased a Marble Moray Eel being told it was
a freshwater fish. Reading some info on the internet told
me that he is a brackish water fish.
<First we should determine what fish you have (Anarchias
seychellensis would be a rare find and I doubt such a rare fish
would be sold as freshwater). Do you have proper pictures you
I have a tank of about 46cm long, 22cm wide and 29cm tall
(I'm not sure of how much litres that is).
<4.6x2.2x2.9 = 29 litres = tiny.>
The tank's bottom is covered in black gravel, decorated
with a few rocks, live plants and a cave. Being concerned of my
eels health, I added 1 tablespoon of freshwater salt (I
heard that you shouldn't use marine salt for brackish water)
to my tank,
<Actually the opposite... you should use marine salt... And
one tablespoon is hardly brackish water...>
dissolving it in a cup before adding it to my tank. I'm
not sure of what the pH level should be, but it is currently
about 7.4-8.0. The temperature is about 22 degrees Celsius/ 71
degrees Fahrenheit. I'm feeding him dried blood worms,
<No food for a moray eel if you really have one...>
but I'm not sure if he's eating. The eel himself is
almost always hiding in his cave, but sometimes he will swim
around in the tank before retreating back to his cave. My
questions are: Is the pH, temperature, salt and food right for a
<First we should determine what species exactly you have
(there are 200+ moray eels species, some hard to tell apart from
each other), then we can discuss the proper environment, which
differs from species to species. If your tank really only has a
volume of 29 litres (which means there are about 22 litres of
water in it) it is much too small for even the smallest dwarf
moray species. Most moray eels are actually marine fish and only
very few can live in brackish water. Cheers, Marco.>
Re: Marble Moray Eel (Anarchias seychellensis)
Thanks for the advice! I am currently changing my tank to be
suitable for my eel. He is looking a lot better, swimming
around and even eating. I heard eels prefer lighter coloured
gravel and rocks and I will soon swop my black gravel for white
gravel and rocks. I'm also adding one cup of salted water to
my tank every day, slowly changing the water to brackish and
eventually marine. I went to a pet shop that specialises in
marine fish (with my eel) to determine what sort of eel he
actually is. The owner said that it is hard to exactly say what
eel he is when he is still small, but the owner said he is 90%
sure the eel is an Anarchias seychellensis eel.
Here is a picture I took of him:
<Hehe... no Anarchias seychellensis... this is
definitely (100%) Gymnothorax tile. Please see here our
article on this and closely related species:
Thank you, Nikki
Re: moray identification, FW
I have another moray to identify. These were being sold as
freshwater morays. One I am sure is G. tile, the other I thought
was polyuranodon but now I'm not sure. I couldn't get a
better pic of the G. tile, unfortunately but you can see his
coloration. There is also a close-up of the second eel, which is
much clearer. -Matt
<Both eels are G. tile. The "unknown" eel still
shows the juvenile coloration, which will/should blend into the
standard G. tile coloration within about a year or two. Some
individuals have the juvenile coloration for a longer time than
others. Definitely no G. polyuranodon. For captive care please
and please hit the shift key from time to time when sending
emails to us (makes it easier for me). Cheers,
"Freshwater " moray eel Mr. Fenner, First, like
everyone else, I have to thank you both for your excellent book and the
responses you post on WWM. They were both very helpful last year when I
set up my first reef, which continues to thrive thanks to your advice.
<You are certainly welcome. Thank you for the acknowledgement> I
am writing to you regarding the eel that is commonly sold as
"freshwater snowflake moray," which I am using as the
centerpiece for a brackish tank. I recently purchased one at 18"
that has turned out to be a fantastic fish. (Just recently came off its
hunger strike...big relief for me!) <Ah, yes> First, has the
scientific name for this eel changed? I see it on WWM referred to as
Gymnothorax polyuranodon, but I have seen it referenced elsewhere as
Echidna rhodochilus. <Hmm, well this is a valid name for one
of the "marine/fresh Moray species":
http://www.fishbase.org/Summary/SpeciesSummary.cfm?ID= But the former
is also freshwater and a valid species:
http://www.fishbase.org/Summary/SpeciesSummary.cfm?ID= And there are a
few others that are occasionally imported for aquarium use... So, both
do come to ornamental aquatics through the Philippines, but are
separate/different species.> Second, I have found reliable
information on this animal hard to find. I have read the synopsis here
and on Fishbase, as well as on Ruben Tolen's brackish site, but I
have found little else on the web. I am primarily confused on the
salinity this animal needs to be kept at as an adult. 1.010 is about
what/where I've seen them kept by the trade... as juveniles. The
Echidna I suspect should be kept in NSW, Near Seawater, conditions as
an adult> I always see it referenced as a brackish fish, but
reliable responses from other aquarists on AquariaCentral and FishIndex
suggest it requires marine conditions as an adult. I am prepared to
provide for it either way, but I would like to know what environment
will be best for it. Thanks for your time and your expertise, Jason
<Actually either or both of us need make a trip down to a large/r
college library here (unless you have BIOSIS/Zoological Record access
at home/office... Go back to Fishbase.org and click, follow under
"references"... and if you have time, inclination, to the
library you go, and have a reference librarian show you how to do a
computer bibliographic search. Like:
http://wetwebmedia.com/litsrchart.htm Be chatting, Bob Fenner>
Re: "freshwater " moray eel Mr. Fenner, Thanks for the
quick reply! The freshwater moray that I own looks more like the
echidna rhodochilus from these pictures, as does the animal labeled as
Gymnothorax polyuranodon on WWM:
_records=1 Does Gymnothorax polyuranodon display enough color variation
to account for this difference in pictures, or is the photo on WWM (or
AC) possibly mislabeled? <Don't know about the range of color,
patterns in this species... all the ones I have seen have been rather
bland... if these were indeed G. polyuranodon... But do know (for sure)
about the possibility of mislabeled images identified by myself! These
are definitely due to error.> Also, I happen to be student at
Virginia Tech, which unfortunately doesn't help as our library does
not have the text cited for rhodochilus on Fishbase. I will look into
Interlibrary Loan and see if I can get lucky...I will let you know if I
find out anything interesting. Thanks again, Jason <Yes to the
interlibrary loan... Do check to see if you have BIOSIS on campus. Bob
Just got a "freshwater snowflake eel" Ok at the
risk of sounding like an idiot...I just got an eel...the guy I bought
it from said it was a freshwater moray snowflake eel, he seemed to know
what he was talking about and was fairly helpful...the eel is about 6-8
inches long and in a 10 gallon tank... water is entirely fresh and
clean...I got some frozen silversides from the guy I got the eel from
and was wondering if this is a good food for him? I threw a few in
there, about an inch square cut from the package, I let it thaw and
then dropped them in front of his hiding place (a plastic decorative
aqua-gator with hollow belly and mouth open) he didn't move for
them...I have fish gravel rocks on the bottom and a filter that I got
from Wal-mart...I guess I just need to know exactly what steps I need
to take to make this a happy healthy eel that isn't going to die on
my fiancÃ©.....she will be crushed....please help me....I
know that all this is probably in the FAQ but I wanted it
personally...if you could send a reply to my e-mail address I would be
extremely grateful....thanks a lot.....Mike <you are correct my
friend. There is so much to say, and at times we are pressed so dearly
for time to try to keep up with e-mailed queries that restating covered
topics can be difficult. The eel species needs to be ID first as a true
fresh, brackish or marine species. The 10 gallon tank is obscenely
small whatever it is. Diet will depend o species again, but is likely
to include crustacea (live shrimp (ghost/grass), crayfish, krill,
cocktail shrimp frozen). If it seems to respire fast it may need salted
water indeed. Please browse articles and FAQs starting here:
http://www.wetwebmedia.com/FWSubWebIndex/fwmorayeels.htm Best regards,
Echidna rhodochilus ID 12/6/06 Hi I was wondering
if the photo of the Echidna rhodochilus on your site is wrong because
it doesn't match the one on fishbase.org, or is theirs wrong.
<Mmm, I do believe both images are of the same species... the one
is of a "natural" specimen... that has eaten much more live
food material, had better water quality. Bob Fenner>
|Eel ID (02/24/04) Hi I attached a photo and
I wanted to know what eel this is. Mostly I want to know how big
will it get like in thickness and length or other information thank
you. <Hi! Ananda here tonight... the file name seems to indicate
the species: Gymnothorax polyuranodon -- though it does not look
quite like other photos I've seen of that species. If you think
the file name is not indicative of the species, and to find out
more basic info, head on over to Fishbase: http://www.fishbase.org ...just type
"Gymnothorax" in the Genus field and check the results.
--Ananda><<Is G. tile. RMF>>
|Yellow finned eel ID I emailed a while ago
about a new unidentified eel I had gotten, and I finally have
pictures to aid in the ID process. He's about 8 or 9 inches
long, about as wide as a pen or a AAA battery at his thickest
point. He eats like a pig, and will come searching around the tank
if I pour in a little of the water I used to thaw krill or prawn
with. (Even if I stick my fingers into the tank after touching
some) <I think what you have is Echidna rhodochilus
Bleeker 1863, "Freshwater White-Cheeked Moray". You can
see this animal on our site here:
found a white color variant Siderea thyrsoidea (white eye moray),
and want to add it to my tank very much, but as it is probably
close to a foot in length and maybe as big around as a nickel or
larger, but I worry that my little yellow finned beauty will be
eaten. <A valid concern. This latter animal will grow much more
quickly than your current one> He is currently in a 38, and I
can quarantine the white eyed in my (hopefully "eel
proof") ten gallon a little longer than normal until I get my
75 up and running in a month or two, but do you think they will
bother each other even in there? <Too likely so to suit me>
It will be mostly dwarf lionfish; a dwarf zebra lion, a dwarf fuzzy
lion, a Fu Manchu, 3(?) leaf fish, a cockatoo Waspfish, and the two
eels. I have some shrimp in the 38 with the little guy, and he
hasn't bothered them yet. I worry that my current little guy
will get too big and eat the white eye moray in time too, since I
don't know what he is (hoping not a longtail moray). Scott
Michael's Reef fishes book states that white eye morays are not
a threat to other eels, and regularly share holes with them, but it
doesn't really say what kind of size difference is a safe
margin for that statement. I would really like them both, and I
worry that because my LFS does not get white eye morays in very
often and I can't seem to ever find them on the internet,
<Look up both these species on fishbase.org> that I won't
see another one, especially a white one. If I really need to, I can
even keep the white eye in my 10 until my 75 is up, then keep him
in there and my little guy in the 38, but I'd like to put them
together. From the pictures, do you have any idea what my little
guy might be? I have more picture, and although they're blurry,
I can send them if you need them. Thanks, Valerie Hess p.s. I have
already tried fishbase.org and I looked at EVERY SINGLE eel picture
they had, but it didn't help. <Mmm, use their "Google
Photos" patch on the (double lift click the image on their
species identification pages) extended photo/s pages. Bob