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Sinking anacharis
8/4/07
Hello, would you have any idea why the unweighted and unbunched anacharis
strands in my 200-gallon drop-in pond keep sinking to the bottom? Once there for
awhile they blanch from, my guess, lack of sun. Are they at least still doing
their jobs down there, oxygenating etc.?
<Have seen this as well... is it "something" to do with the circumstances, the
metabolism, due to water quality, natural lighting... that the Anacharis/Egeria
becomes more dense? Will continue to photosynthesize at depth>
The anacharis in my 40 gal freshwater aquarium on the other hand, float like
corks. Of course in there, I wish they *would* stay bunched and rooted in the
gravel, but the fish apparently have other ideas.
<Ah yes>
The anacharis in both cases is from the same source, and was part of the same
shipment.
Kathy
<I sense some experiments coming on... What is it about the two environments
that results in this? Can it be reversed? Bob Fenner>
Anacharis 4/24/07
Hi crew,
<Hi, Olly here in the UK>
First of all thanks for running such a great site, all your information has been
most helpful for us here in London, England.
<Pleasure, a lot of great people have helped make it what it is>
I have one question for you, I want to introduce real plants to our aquarium,
most probably Anacharis, how would you recommend that I "install" it in the
tank? I assume the sponge and metal wrapped around the bottom of the plant must
be removed before it is put in with our goldfish? How do I then re-bunch the
Anacharis to keep it together (is string safe for aquarium use?).
<
http://www.wetwebmedia.com/PlantedTksSubWebIndex/elodea.htm
Run it through a dip to remove any unwanted hitchhikers. Leave the “anchors” on
as the metal in particular often acts as a fertilizer supplying the plant and
then just plant it in the tank. It may eventually become a meal for your
goldfish however, do watch out for this.>
Thanks once again for all the help your site has given us.
<Unfortunately not mine Heehee, but keep using it and enjoying it all the same>
Kind regards, Sergio
<Thank you for your well constructed email and good luck with everything, Olly>
Egeria densa sourcing 3/20/07
Good Morning,
Can you tell me where I can order this plant for a science project.
Regards,
TODD DABBS
<Mmm, you should be able to buy it locally, at/through an LFS (Livestock Fish
Store)... Do you need a lot (boxes?)... If so, I would order through one of the
aquatic garden suppliers in Florida... you can locate these through the FTFFA
(.com). If you want, have greater facility through these means, the various
Biological Supply Houses (e.g. Carolina) can/will supply you. Oh, and the usual
cautionary remark to be aware that this species and Elodea canadensis are often
mis-sold as each other. Bob Fenner>
Re: Egeria densa 3/20/07
I do thank you for your response.
I later found that any (waterweed) is illegal in Texas.
Thanks you're your help.
Kindest Regards,
TODD DABBS
<Ahh, you're welcome. And the usual taken opportunity to admonish the release of
any non-native organism here... Do place such "extra" plant materials in the
freezer (w/o water in a plastic bag) and toss in the trash on/near trash day...
NOT down the toilet, NOR ever in an outdoor body of water with possible egress.
Bob Fenner>
Freshwater plant (anacharis) stunted growth
- 10/25/06
Hello crew, I'm having a problem with some of my plants, Anacharis in
particular. I have a 55 gallon tank and 55 gallon filter, and a 10
gallon
aerator. I only have a partial load of fish (maybe 25 inches
worth) Including
2 silver dollars.
<Am surprised these haven't eaten this plant material>
Which is why the anacharis is so important-its the only
plant besides Java Moss that they won't eat.
<Mmm... unusual>
Initially the anacharis was
growing wild, but now the older bundles are barely growing at all, and
even
new bundles won't take off the way they used to, they just kind of break
off
bit by bit until its all gone. I do and have done for two years) weekly
water changes and testing, and nothing has changed-water parameter wise.
I'm
not really sure if I want to start fertilizing, or adding CO2, as I have
heard these can cause complications. Can you guys recommend anything?
Thanks -Julian
<There is a sort of "age span" for Egeria/Elodea and its non-sexual
reproductive phase... I suspect yours has reached this limit. I would
try introducing some new stock here. Bob Fenner>
Hardy Plant Health Mystery - 12/13/2005
Dear Mr. Fenner,
<Actually, Sabrina with you today, in his stead>
Please help, upon research, I can find no solid information or logical
conclusion as to why my current batch of Elodea densa turns brown at the tips,
roughly three inches back. this comes after a long growth period under "prime"
conditions (see specs below) with no other problems to any of the other
plants. The anacharis is not growing but are not falling apart, they appear
stunted, my
only hypotheses is, after the long growth period the original stems (rooted)
have up to five consecutive side shoots and combined are roughly two feet in
length. In conclusion I ask for your advice, do I need to prune,
<I would.>
raise temp,
<No, your temp is fine. Warmer would be bad for E. densa.>
or anything else you may know, that I have overlooked (29gal, 36wt. 67k, 36wt.
10k,
<Tank size would be helpful to know, with regards to your lighting
amount.... and type of lighting is more useful to know than just wattage
alone....>
62f-72f. hang-on refugium, 5lbs. miracle mud,
<This is almost starting to sound like a salt tank.... How is the miracle mud
working out for you in a freshwater system? I didn't realize there was a
miracle mud product marketed for freshwater folks.>
C02 setup, laterite base, api iron supplements, heavily stocked with fish and
plants). I appreciate your time and expertise,
<The only other thing that I can think of (and this really is entirely likely)
is that the other plants may actually be outcompeting the Elodea/Egeria for
food/nutrients. Otherwise, it is also possible that your various plants are
engaging in allelopathy.... I would google "freshwater plant allelopathy" for
more information, and might look at Diana Walstad's plant book.>
Eric Lammers
<Wishing you well, -Sabrina>
Elodea use in Conn. 12/14/05
Dear Mr. Fenner:
<Bill/William>
I am a high school science teacher and I would like to conduct an
experiment using Elodea.
<A "stock" organism for such>
I have been to five aquarium supply stores and
two of them told me that the state of Connecticut has deemed it an
"invasive species" and it can no longer be sold in these stores.
<A possibility... is trouble if released into the wild... as are most things
that can survive where mis-placed>
I can
find nothing about this on the Connecticut State Department of
Environmental Protection web site and they are usually pretty good about
providing up-to-date information about these things. Do you know
anything about this? Thanks.
Bill Watts
<I do not... but I would check with your State Fish and Game... this is often
the controlling agency at this level. Cheers, Bob Fenner>
Elodea canadensis
I am carrying out an experiment on how light intensity affects the rate of
photosynthesis. I would like to ask if you could please email me some
information about how light intensity varies in the niche of the Elodea
canadensis. Any help that you could offer is greatly appreciated.
>> Elodea is found here, just around Montreal Island in shallow water of the St.
Lawrence River. You can get a good idea of current weather, daylight hours and
seasons at this site. Remember that here we have ice on the river from December
to March, sometimes longer.
http://meteocentre.com/home_e.html
http://www.cbc.ca/montreal/weather/?station=YUL&style=montrealFull
You will have to research some data to see how much light intensity drops with
turbidity (the current visibility in the habitat is around 30 feet) and depth.
Good Luck, Oliver
Overwintering anacharis
Hi All,
Can anacharis be overwintered in a New England pond? Would you advise it?
<If it is the "right" "Elodea"... Please see here re:
http://www.wetwebmedia.com/PlantedTksSubWebIndex/elodea.htm
There are a few plants, some tropical and some temperate that go by the common
name Anacharis... If you have a coldwater one, it likely will overwinter fine,
unless the water freezes about it>
If so, should it be weighted to the bottom of the pond or can it be left to
float on the surface as in warm months?
<Best to wait it down if you anticipate your pond surface will freeze>
How should the anacharis covering the entire surface of a 125g
bacteriological/bog filter be treated? Should I submerse it in my pond for the
winter?
<I would submerse it>
Karen Randall of BAS, you may know about this.
Thanks,
Jeff
<Yes, am sure. Bob Fenner>
Jeffrey Zegas
Elodea
I want to know the origin of this plant and what medicinal effect it has and what countries grow it.
<Hello! Thanks for writing in to WetWebMedia. Elodea, specifically Elodea canadensis, is native to cooler areas of North America, as it likes a nice, cool temperature of 50-68 degrees
Fahrenheit. It is very easy to grow, and very adaptable. As for medicinal value.... I often recommend offering this plant to goldfish to keep a good content of vegetable material in their diet, which can help prevent constipation in this (and other plant-eating) fish; but I am not aware of any medicinal value of this plant outside of that. Try here for more information:
http://www.wetwebmedia.com/PlantedTksSubWebIndex/elodea.htm . Wishing you well, -Sabrina>
The Beginner Plant "Anacharis", Elodea and Egeria
Hi,
<Hello there>
I am doing a science project that involves Elodea. After reading your
article, I realized that I was required to use the author, latest date updated,
and name of institution for my bibliography. I was wondering if there
might be a way for you to email me the above. Thank you very much for
your help. Please e-mail me if you can or cannot answer the above.
Thank you,
<You may cite me as author, w/o a date (as in "undated") and http://www.WetWebMedia.com
as the source. Bob Fenner>
Anacharis, elodea and Egeria
Your article on the website is informative, but could you tell me what are
the legal issues regarding sale and use of these plants for outdoor use?
<There are, as far as I'm aware, no such restrictions on the sale of
freshwater plants in the ornamental trade. There are some laws on the books
concerning Caulerpa algae... and some fin-fish... vis a vis they're potential
harm on release to the wild>
The similarity of elodea to Hydrilla scares me, knowing what an environmental
problem Hydrilla has become. FYI, I am a landscape architect in Louisiana.
<These two genera are VERY similar indeed. As usual, I proscribe that nothing
be released to the wild... terrestrial plants included. Bob Fenner>
Margaret Waring
Re: No Elodea in Washington state...
Hi Bob,
I remember reading that there are some restrictions on Elodea. Several states have defined it as a noxious weed, including Alabama, Maine, New Hampshire, Oregon, South Carolina, Vermont, and Washington. A nice list of what's considered a weed where is www.pondkeeper.com/articlepdf/noxiousweeds.pdf ....
--Ananda
<Thanks much. Will post... Bob F>
Re: plants for sale?
>HI there :)
>>Hello Erica. Sorry this is so late, but I've been out of
town.
>I came across your website and was interested in purchasing some
Anacharis, I am not sure if you sell any but I would love to buy some.
>>I'm sorry, but to the best of my knowledge we don't sell anything other
than advertising space on the site. Maybe one of the sponsors? Although
most are geared for "salties". You might try a Google
search, Anacharis should be easy enough to find.
>I have home made turtle ponds and my turtles crave plants. Would you be
willing to sell me some? I am really interested! Please get back to me. Thanks
in advance :)
>>Sorry I can't tell you what you'd like to hear, Erica, but as I said, it
should be easy enough to find via Google (or even a search of your local pet
shops?). Best of luck! Marina
Plants for sale? Who sells Anacharis?
HI there :) I came across your website and was interested in purchasing some
Anacharis , I am not sure if you sell any but I would
love to buy some. I
have home made turtle ponds and my turtles crave plants. Would you be
willing
to sell me some? I am really interested! Please get back to me. Thanks in
advance :)
Best Regards,
Erica Belczysnki
<Hi there. We don't sell anything other than our own books, images, but there
is a list of businesses that do offer aquatic plants, including Anacharis/Elodea.
Please see our root web: www.WetWebMedia.com and from there, the "Planted
Tank" subweb, and the "links" pages there and the
"Ponds" link pages... see the livestock listings? These are links as
well. Bob Fenner>
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