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FAQs about Red Algae/Rhodophyte Identification 2 Related Articles: Red Algae in General, Coralline
Marine Algae, Avoiding
Algae Problems in Marine System,
Algae Control, Marine
Maintenance, Marine Scavengers, Snails,
Hermit Crabs,
Mithrax/Emerald
Green Crabs, Sea Urchins, Blennies,
Algae Filters, Ctenochaetus/Bristle
Mouth Tangs, Zebrasoma/Sailfin Tangs, Skimmers,
Skimmer Selection, Marine
Algae, Coralline
Algae, Green Algae, Brown
Algae, Blue-Green
"Algae"/(Cyanobacteria), Diatoms,
Brown Algae, Algae as Food,
Related FAQs: Red Algae ID 1,
Red Algae ID 3,
Red Algae ID 4, Red Algae ID5, & Red Algae 1,
Red Algae 2, Red
Algae 3, Red
Algae in General,
Red Algae 2, Red
Algae 3, Red Algae Behavior,
Red
Algae Compatibility, Red Algae Selection,
Red Algae Systems,
Red
Algae Nutrition, Red Algae Disease,
Red Algae
Reproduction/Propagation,
Coralline Algae,
Marine Macro-Algae, Use in
Aquariums, Algae as Food, Marine Algae ID 1, Marine
Algae ID 2, Marine Algae Control FAQs II,
Marine Algaecide Use, Nutrient
Limitation, Marine Algae Eaters, Culturing
Macro-Algae; Controlling: BGA/Cyano,
Red/Encrusting Algae, Green
Algae, Brown/Diatom Algae,
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Cyano? Red Hair Algae
02/05/2008
Hello WWM,
<<Hello, Andrew here>>
My tank has had an algae problem for a while, and I believe I am slowly taking
it out. First of all, I got a better Pinnacle RO unit which replaced my crummy
tap water filter.
<<Certainly going to help no end>>
The algae has decreased significantly, but it is not quite gone yet. The one I
notice the most is a long, thin, hair like red algae, that grows in certain
spots mainly the substrate. I wasn't sure if this is Cyano, but I guess I won't
find out until I do more water changes and more
skimming. Is there a different between Cyano and red hair algae? Its my main
problem. Would a Phosphate reactor help here?
<<There are a few different types of red hair style algae's such as Gelidium,
Polysiphonia and Asparagopsis. Providing a photograph of the algae in question
would help a lot to advise what type of algae you have. And to answer the
question, yes, Cyano and red hair algae's per say, are quite visually different.
A phosphate reactor would certainly be a good device to add if you feel the
phosphate levels are high and your unable to control them yourself>>
Thanks, Joe
<<Thanks for the questions. A Nixon>>
Live Rock Hitchhiker IDs (Corallimorph and
Red Alga) – 05/07/07
I purchased a new piece of live rock and a few weeks later found
this growing on a piece of dried out plate coral.
<<Neat>>
The plate was totally bleached out and dead when it went into the
tank. These appear to be some sort of mushrooms and I have no idea what
the red stuff is in the other picture.
<<Mmm yes, perhaps a Ricordea species...and the “red stuff” is a
Rhodophyte though what species it is I don’t know...perhaps if you have
a look around at algaebase.org...>>
It started out with just one small creature and has now expanded to at
least 20.
<<Fast grower, eh>>
They are now about 6 months old.
<<Mmm, ok...not atypical for Corallimorphs>>
There is clearly a mouth in the middle of each one. The stalk is soft
and will extend out. They look like Blastomussa on the top surface, but
as I said the stalks extend and are soft.
<<Yes...like Ricordea>>
When they are fully contracted the "fleshy" parts will look pink as can
be seen in some of the smaller ones. They can also blow up much larger
than this like an anemone. <<Typical Corallimorph behavior>>
The red stuff also appeared when the new rock was put in. It has now
spread over about 40% of this rock. It is made up of many small -3mm or
so lobes. These lobes are vertically flat.
<<The red alga “may” become problematic/spread more than you like. If
this happens, your best bet for controlling it (short of manual
extraction) will be an urchin species. Mespilia globulus is a good
choice for smaller systems or a Diadema species for large (100g +)
tanks...but be aware it has been my experience the latter will also
sometimes graze on Acroporids. EricR>> |
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Where the Red Fern Grows -
03/24/07
Hey Guys,
Absolutely love the site. Have been lurking here for about 6 months now
and every question I have had has been answered by doing research on the
site. Every one except this one...
<Is indeed a great resource and thanks for taking the time for looking
before asking now, lets see if we can help..>
In the last 6-8 weeks we had this beautiful red fern "thing" grow off of
a piece of Live Rock that we obtained from our LFS.
In the past 2 weeks the thing has gone gang busta on us. We are not sure
if it is ok to have in our aquarium. Could you try to "id" it for us
(sending an attached photo) and let us know if it should be removed. I
hope it won't need to be removed as I think that is very beautiful.
<Not to worry, it looks to me, and without further close-ups, like
Gracilaria, a type of red algae that is quite common in aquaria and food
markets. It's harmless to your system and I agree, adds a really vivid
colour. Although you mention excessive growth, which may be due to high
nutrient levels, and I would definitely check your nitrates here>
Thanks for all your help.
<Pleasure, Olly>
Dawn
<Also thank you for taking the time to spell and punctuate everything
correctly> |
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Algae ID - Gracilaria textorii? Fauchea? Red Macroalgae
1/30/07
Hello WWW crew!
<Hi there! Mich with you today.>
I'm having quite a time ID'ing this algae. I've found pics of Gracilaria
textorii that look similar, and pics of Fauchea sp. that look similar. Any
looking at the pics of Fauchea and g. textorii, I think THEY look similar to
each other!
<Heeheeee!>
HELP!
<Given the choice between the two, my vote goes for Gracilaria textorii, though
I am no expert in algae.>
To save you pain of email attachments, I've hosted the images I took last night
on my website here:
http://www.climatestudios.com/algae/algaeid.html
<Got it.>
Any ideas?
<A beautiful red Macroalgae for sure.>
Thanks so much!
<You're welcome! -Mich> |
Re: Algae ID - Gracilaria Textorii? Fauchea?
Red Macroalgae
<Hello again, Mich here.>
Thanks for the reply.
<You're welcome.>
I now have another opinion that thinks Delesseriaceae.
<Another possibility. I don't know if you are aware, but there are
nearly 4000 species of saltwater red algae, so narrowing down the exact
species is quite a challenge. A marine botanist would probably be more
suited for the task. I will pass along to WWM guru Bob Fenner for
comment.>
Links to 2 new pics of leaves:
http://www.climatestudios.com/algae/alg_close1.jpg,
http://www.climatestudios.com/algae/alg_close2.jpg.
Also, if it helps, when this is pulled and left out, there is an almost
"stinging" feeling in the air. A couple months ago, I pulled a bunch out
and as my girlfriend and I were laying in bed, our eyes stung (both of
us) and there was a very strange odor. Since then, I've tossed it
outside when removed. Now, as the clump I pulled is drying, there is the
same odor, and places on
my arms where I touched after handling it are itchy, similar to an
allergic reaction.
<Yikes! I'd recommend wearing gloves in the future.>
Link to original page:
http://www.climatestudios.com/algae/algaeid.html
To REEF CENTRAL thread:
http://www.reefcentral.com/forums/showthread.php?s=&threadid=1032798
Thank you!
<You're welcome! -Mich> |
RMF any thoughts...
<From what I see/saw, this look/ed like a Fauchea species. BobF> |
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Algae et al. ID, coldwater? 1/14/07
Hi All,
Picture 1: Last week I saw some red macroalgae I was interested in and
asked what it was, no one knew, the tank was simply marked "Red
Macroalgae on rock" I tried researching it from memory but with no
luck. This past Friday I went there and although the piece I was
interested in was gone they had another nice one and I bought it.
<Not for a tropical tank I hope>
Following are a couple close-ups and one almost full shot. The piece is
about 7 inches tall. In all the research on pictures I saw one that
looks similar, Gracilaria textorii. With all the different species of
red macroalgae it's difficult for me to really know which one it could
be. The fronds are leathery feeling and one small blade is solid white,
as opposed to how Caulerpa seems to turn clear. My concerns are amount
of light, how to trim it down when needed, and water movement. It came
attached to a very tiny rock fragment.
<Can't put my finger on the genus here, maybe a Galaxaura... but am
pretty sure this is a cold water organism... collected off of
California... not an uncommon practice... some folks who don't know...
sell/buy Metridium, Tealia et al. anemones, Catalina Gobies, macrophytes
from here... Won't live for long in warm water...
Picture 2: A couple weeks ago I asked to purchase a small bit of Chaeto
from the LFS and the staff person pulled it from the sump under their
soft coral display tank. Within a couple days I had tons of copepods,
but I also noticed this thin red line on my glass and at first I thought
it was a worm. But it is growing and changing. I have 10 of these 'red
things' located in one area growing on the glass. Attached is a picture
of two growths labeled with the dates. The longest one on Day 1/14 is
almost a half inch in length. Do you have an idea what it might
be?
Thank you.
Debra Piedra
<Mmm, maybe a hydroid... originating from/with the coldwater Rhodophyte.
I would keep your eye on the algae... remove it when it appears to be
decomposing. Bob Fenner> |
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Another Rhodophyte? - 08/03/06
Hey, how's it going?
<<Fine, thanks>>
Can you ID the subject of this picture for me?
Thanks.
Jim H.
<<Appears to me as a translucent species of Rhodophyte. We've had a
couple inquiries on these of late...must have been an influx of live
rock from someplace where these are common. Regards, EricR>> |
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Saltwater ID 8/1/06
Hello, use your site for reference all the time, thanks!
<Welcome>
I am wondering what this is. I assumed it was algae, but have not been
able to ID it anywhere. Though I saw it on your site, but not sure. It is
growing rapidly and I would like to either trim it or move it.
Thanks
<Is a beautiful photo and specimen of a Rhodophyte... likely a Fauchea
species:
http://search.msn.com/images/results.aspx?FORM=IRRE&q=fauchea
and on WWM:
http://wetwebmedia.com/redalgae.htm
Can be trimmed, cut, pulled... Thank you for sharing. Bob Fenner> |
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What is it? Red algae ID 2/25/04
WWM Crew, I have this probable red algae growing in one of my tanks.
Do you know what it is? First picture was taken today. the other picture
in Sept. 03. Mitch <Hi Mitch. I am not sure of the ID of the
first algae that sort of looks like a bunch of curlicues. The
second algae that is sort of feathery looking, looks like Gracilaria. Both
are beautiful and nice finds! Best Regards. Adam> |
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