FAQs about Red Algae/Rhodophyte Identification
4
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 2, Red Algae ID 3, 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,
|
|
|
New Print and
eBook on Amazon
Marine Aquarium Algae Control
by Robert (Bob) Fenner
|
Red Fuzzy Coralline? '¦Not likely,
perhaps another Rhodophyta -- 08/26/07 Hello crew! <Hi
Dave, Mich here.> I have been researching your site and others
trying to figure out what is growing in my 90-gallon reef.
<OK.> I have a red feathery/fuzzy substance growing on a
lot of my rocks, snails and hermit shells. <OK.> I was
wondering if it was a type of coralline and harmless in my tank.
<Only guessing without a pic.> I am very familiar with
cyano and I don't think this substance is it. <OK, One of
many possibilities off the table.> It is very difficult to
scrub off, and grows in high flow areas unlike cyano. <Still
leaves a plethora of possibilities.> I read a similar query
asked by another gentleman on your site. The reply to him was
that it was coralline, and that he should drop some vinegar on it
to see if it bubbled to be sure that it was. I tried this
experiment on my substance and it did not bubble. <Then it is
likely not coralline or any other calcium based organism.> The
other gentleman described it very well, in my opinion, by saying
it appears to look like patches of red mold. <Many nuisance
algae come to mind, red turf algae or red hair algae such as
Polysiphonia, Asparagopsis, Anotrichum barbatum, Gelidium
pusillus, or perhaps a beneficial organism such as a red tree
Foram (Homotrema rubrum) Your expertise would be greatly
appreciated. <A photo might help here.> Thank you all for
this amazing site! <Thank you for your kind words!> Dave
Kansas City, MO. <Mich Gouldsboro, PA.>
Re: Red Fuzzy Coralline? '¦Not likely, perhaps
another Rhodophyta... BGA 8/28/07 Mich, <Hi
there Dave.> Thank you, for your quick and very helpful
response! <Welcome!> I have been researching your suggested
algae species and I am continuing to have problems identifying
which is growing in my tank. <Yes, does not look like what I
was picturing in my head with out the photos.> I hope that
they attached picture of the red substance growing on my glass
magnet might help you take a better guess at what it is. <Mmm,
pics are helpful. Is not a red tree Foram and likely not many of
the algae I suggested previously, is a nuisance alga, likely a
Rhodophyte, but beyond that I can't tell. Perhaps RMF will
comment on the dailies page.> <<Is highly likely
Cyanobacteria... a quick look under a few hundred power
microscope would show the absence of nuclei, organelles, the
distinctive circular DNA if higher powered... Please read on WWM
re BGA... RMF>> This is the way it appears everywhere in my
tank, (rock, hermit shells, powerheads) short, red, and fuzzy.
<No fun. Perhaps some improvements in husbandry would help?
http://www.wetwebmedia.com/nutrientcontrol.htm
http://www.wetwebmedia.com/marine/maintenance/marineMaint.htm
http://www.wetwebmedia.com/avoidingalgaeproblesm.htm > Thank
you for your time, <Welcome, wish I could be more helpful.
Mich> Dave Mmm, think I forgot to move an image into the
emails with images folder... re: fw: re: Red Fuzzy Coralline?
atten: Mich <No worries... was there somewhere. Found,
posted> Also He stated earlier: It is very difficult to scrub
off, and grows in high flow areas unlike cyano. <Is almost
assuredly BGA... B>
Re: Red Fuzzy Coralline? '¦Not Likely,
Perhaps Another Rhodophyta... Nah, Cyanobacteria -- 08/31/07
Mich, <Hi Dave.> Thank you again, for the quick and helpful
reply. <You're welcome!> I was however disappointed
that I could have some yucky cyano in my tank. <It happens to
all of us. Glad you can't see my tank right now!> Let me
give you a little background on my tank and husbandry. It's a
90-gallon reef with a medium bio-load. There is no detectable
nitrites, nitrates, or ammonia. However with the phosphate test
kit that I have, (which is very hard to read, maybe time for a
new one.) I think I may have a slight amount of phosphate in my
water, less than 5ppm (however, with the color chart its very
hard to determine if its actually 0) Calcium and alkalinity are
within parameters, and my ph. stays pretty steady, and high,
around 8.4. I have an all-glass model 3 wet dry. <If you have
a wet/dry, you most assuredly have nitrates, if your getting
readings of zero it is because your algae, nuisance or macro is
using it up. Yes, I do keep a close eye on my nitrates. ANS G-3
protein skimmer, which works great, and I use RO water. I
religiously change 4-5 gallons of water weekly. <About twice
that amount would be better.> I don't have a lot of live
rock, around 75lbs, and my sand bed falls into the poor thickness
range, 1 1/2 to 2 inches. <Nutrient sink and not deep enough
to be very helpful with anaerobic metabolism.> So I consider
myself very conscientious about my husbandry (except if it really
is cyano, it has to be from me being such a sucker to my Kole
tang.... he likes to eat, and I'm easy). <Heehee! Could be
a contributing factor.> So when I saw that yourself and Bob
both think its cyano, it really made me think about my feeding
habits. <Nix the Wet/dry, deeper sandbed, add some macro,
bigger or more frequent water changes...> Nevertheless, I took
your advice and took a sample of it to the local high school,
where my mother teaches biology and put it under a microscope.
<Cool!> It took a few adjustments, but I found that this
substance definitely has a cell wall and what appear to be
organelles, however I could not identify a nucleus. If so, does
cyano bacteria have anything that appears to be cell walls,
because this substance had a definite structure? <Yes
Cyanobacteria do have cell walls and although they are truly
prokaryotic their internal membranes are elaborate and highly
organized and may resemble organelles. The missing nucleus
further suggests Cyanobacteria.> I understand its very
difficult to take stabs at the millions of possibilities it could
be, but your advice has been so beneficial thus far, I thought
I'd put the ball back in your court. Any more guesses would
AGAIN be very helpful. <As Bob suggested, is likely
Cyanobacteria.> Thanks yet again, for your time and dedication
to your absolutely wonderful site. <WetWebMedia is Bob's
baby. I am but a minor contributor to his massive endeavor. But
thank you for these kind words on behalf on Bob on the rest of
the crew.><<Uh huh. RMF>> Dave
<Mich>
<Gouldsboro, PA>
|
|
Please help me ID and get rid of this Brown Algae
8/22/07 Hello. I've been trying to id this brown algae in
my tank so I can figure out how to get rid of it, but haven't
found any pictures that look like this algae. <Mmm... not a
brown, but a Red: Peyssonnelia sp. An encrusting Red. Class
Rhodophyceae, Subclass Florideophycidae, Order Gigartinales,
Family Peyssonneliaceae.> Hoping you wonderfully knowledgeable
reefers can help. :) I have some dark brown algae growing in
circular patterns on my rock. Attached are 3 pictures of the same
algae. What concerns me, is how much it has grown in 6 weeks. I
looked at an old picture, and 6 weeks ago, there were a couple
spots on one rock that were about the size of the tip of my pinky
finger, and now they've grown into one spot about 2" in
diameter. I thought this algae wouldn't be removable because
it looks fused to the rock, but with some work, I completely was
able to remove one circle about 1.5" in diameter. Came off
in very small pieces. I thought it was slimy, but when I started
pulling off pieces, it actually looks and feels like seaweed /
kelp. My tank is pretty new....has been up and running for 4
months. My parameters are good, and I feed once a day and try to
only give enough food that the fish can consume within 5 minutes.
I use RO/DI water (Spectrapure MaxCap) with 0 TDS, and faithfully
do bi-weekly water changes (10%). The sand bed looks good.
It's just some good size patches of brown algae on the rock.
No hair algae or any other type of nuisance algae. I had a small
spot of bubble algae and turned the lights off for 3 days about a
month ago and it disappeared and hasn't come back, but
turning off the lights didn't do anything with this algae.
Any idea what this algae is and what is the best option to get
rid of it? <Please read here:
http://www.wetwebmedia.com/redalgcompfaqs.htm and the linked
files above> If I work on pulling it out manually, or using a
toothbrush, will little pieces of it that might not make it to
the skimmer, create an even bigger problem by spreading it around
the tank? <Maybe...> Just FYI.... I recently added a second
power-head to add some flow. (25x turnover now). I run my
T5's for 10 hours a day, and the 150w MH only runs for 4
hours a day (only softies right now). All bulbs are only 4 months
old. My parameters: Nitrates, Nitrites and Ammonia are all 0.
Phosphates are .1 PH 8.1 Alk 2.9 Temp 82 going up close to 84
when MH's are lit Calcium 330 5 small fish in a 53 gallon
tank. (2 small Perculas, 1 Purple Firefish, 1 Pygmy Possum Wrasse
and 1 Tailspot Blenny) Thanks! Pam <Mmm, a few possible
approaches here... Nutrient limitation... the growing of
competitive species... Greens likely... Read on. Bob Fenner>
Re: Please help me ID and get rid of this Brown
Algae 8/23/07 Thank you Bob. I'll start going
through the links on the page you sent me. It looks more brown to
me, than red, <Perhaps the photo itself has some artifactual
color influence here> in person...but I know in the photos I
sent, it definitely looks deep red. Any chance this could be
Lobophora? <Mmmm, not much...> It's not lifting up at
the edges at all, but maybe it hasn't gotten to that stage
yet? <Bingo...> If it's definitely a red algae, any way
that's best to remove it, or is manual removal the best
option? Thanks, Pam....also an avid diver! :) <Actually,
I'd enjoy it... likely increasing light intensity alone would
disfavor either a Red or Brown/Phaeophyte, over a Green... Bob
Fenner>
|
|
Mysterious Red Macroalgae 8/22/07
Hi crew. :) <Lindsay> I've browsed the internet, various
online forums, and WWM for a few months now and cannot seem to find
what kind of algae I have in my tank. <It's very likely
Botryocladia> I attached a picture for you to look at.
Basically, it's some sort of red bubble algae I'm assuming,
but it's not like any species of Botryocladia I've ever
seen. It also doesn't float, as Botryocladia should. <Mmm,
doesn't always> When I touch the bubbles with my hands, they
seem to be soft, but the bases are more tough. As you can see,
there is no uniform color throughout each "bubble" and
they are all different shapes. Most are a more ovalish shape, sort
of like a UFO, instead of a circle. When I look at them, there is a
definitely purplish hue on the tops of the bubbles white neon
orange specks throughout. If you look closely at the picture, you
can see what I mean. Also, the bubbles seem to enjoy high flow
areas, and are loving growing on the output of my powerheads. They
are also taking a liking to my snail shells and the exposed
skeleton of fragged SPS corals. Lately, this algae has bloomed and
spread, despite more frequent water changes, reduced feedings, PO4
removing material, etc. Any help at all would be much appreciated.
Thank you for your time, Lindsay <Mmm, well, I'd
siphon/while scrubbing to remove most all of it if it bothers
you... It would likely "lose" to more vigorous Green
species culture... Bob Fenner> |
|
Coral ID... Nope algae Id...
Rhodophyta 8/19/07 Would you please help identify
this coral. <Yep, is not a coral. Is a red alga, a Rhodophyta.
I've seen it before and have had some in my own tank. I am
blanking on the species name right now and haven't had much
success searching for it. Sorry. It is quiet pretty and generally
does well. Enjoy it!> I purchased the sun coral about six months
ago. This coral must have been attached to it, although not visible
due to size. It has grown to about 2 inches since. It is soft and
translucent. Does not retract when touched. <Cheers,
Mich> |
|
Please Help Identify... Rhodophyta 8/10/07
Hi, <Hi Laura, Mich here.> I just want to say that all the
articles that I have read on your site have been extremely
helpful. At the moment I am stumped as to what type of
plant/algae I have in my tank. I have researched and can't
really find it. If you could please help me identify this and let
me know if it is good or bad I would greatly appreciate it. It
has been growing in my tank for many months now. I trim it back
to help control it. None of my zoanthids seem to mind it much
they just keep growing and spreading pushing their way through.
None of my hermits, snails or fish eat it. Is this a safe algae
to have or should I trim and extract all of it out of my tank. I
do have to say that it is pretty and is about the color of
coralline algae maybe a little darker and sometimes it casts a
purple hue at it's edges. I have enclosed a picture. <Mmm,
having a hard time telling from the photo. Is of the division
Rhodophyta. If it is firm and not really flexible it may be a
type of coralline algae, perhaps a Peyssonnelia sp. which would
be desirable.> Again I just want to say you guys are great,
sometimes I don't know what I would do without you. <Thank
you for these kind words.> Many thanks in <Welcome,
Mich>
Laura
|
|
Macro Algae ?? 7/21/07 Hello All, I have
been enjoying the slow and steady outcome of my newest setups
evolution. I had come across a small leaf of some sort growing on
live rock. I left it alone and it slowly grew into this (pic
attached) in approx. 4 months. At 9 months now and its twice the
size. Intricate patterns stretch across the (now many) leaves. It
appeared near my 7" Gold Crown Sarco and what was once a
"neat little thing" is demanding as much ooohhs and
ahhs. Especially when its the sarcos time of the month..wink
wink. Unfortunately I haven't a clue what it is. I've
done my homework here on WWM and cannot find a match anyone else
have an idea?? I'll send a more current photo after my wife
makes me clean the glass. J/K lol I'll take a pic when the
daytime lights are on next time This pic is with actinics only.
David Conway <Likely a Rhodophyte... but could be a
Bryozoan... Need more detail in the image. Bob Fenner>
|
|
|
New Print and
eBook on Amazon
Marine Aquarium Algae Control
by Robert (Bob) Fenner
|
|
|