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FAQs on Marine Algae Identification 32

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Related FAQs: Algae ID Visual Guide, Marine Algae ID 1, Marine Algae ID 2, Marine Algae ID 3, Marine Algae ID 4, Marine Algae ID 5, Marine Algae ID 6, Marine Algae ID 7, Marine Algae ID 8, Marine Algae ID 9, Marine Algae ID 10, Marine Algae ID 11, Marine Algae ID 12, Marine Algae ID 13, Marine Algae ID 14, Marine Algae ID 15, Marine Algae ID 16, Marine Algae ID 17, Marine Algae ID 18, Marine Algae ID 19, Marine Algae ID 20, Marine Algae ID 21, Marine Algae ID 21, Marine Algae ID 23, Marine Algae ID 24, Marine Algae ID 25, SW Algae ID 26, SW Algae ID 27, SW Algae ID 28, SW Algae ID 29, SW Algae ID 30, SW Algae ID 31, SW Algae ID 32, SW Algae ID 33, SW Algae ID 34, SW Algae ID 35SW Algae ID 36SW Algae ID 37SW Algae ID 38SW Algae ID 39& Marine Algae Control FAQs 2, Marine Algaecide Use, Nutrient Limitation, Marine Algae Eaters, Culturing Macro-Algae; Controlling: BGA/Cyano, Red/Encrusting Algae, Green Algae, Brown/Diatom Algae,

Worm-like Growth ID 6/15/10
I was wondering if anyone could identify this strange growth in my tank. I had a couple of clowns that died a while back and they appeared to have these worm-like things growing out of them (may have been something else).
I would love to find out if this could be anything dangerous.
<Mmm, on magnification this looks like algae and detritus... You might look into better mechanical filtration, circulation, nutrient control... Bob Fenner>


What is this algae and will a Flame Angelfish eat it? 05/25/2010
Hi Crew,
I attach a photo of some red macro-algae that has been growing slowly in one of my tanks. Presumably, this algae came in with the Florida live rock I bought several years ago, even though I did not become aware of it until
about 18 months ago, when the rock got moved into a relatively dark corner of a relatively low light FOWLR tank. This algae is really pretty, and I am fond of it.
<Kind of just looks like some kind of blue/green algae to me... but maybe could be Fauchea sp. red algae? <<Is a Rhodophyte. RMF>> Unfortunately, I don't know that there are too many, if any, full-color photo illustrative guides to aquarium algae identification -- perhaps it's the narrow audience or minute consumer market for such a thing? It's too bad really... I mean, after all, who isn't, at some point in his/her life, haunted by a mysterious, unidentified, nearly amorphic autotrophic growth in their marine aquarium?>
So question 1 is can you identify this algae for me?
<Not really, no... but since it lacks an obvious underlying "structure" I'd wager that it's a blue-green algae of some sort.>
Question 2 is do you think that a Flame Angelfish will devour this algae if I introduce one to this tank?
<Hard to say... after all, if you put a plate of anchovies in front of a class of 6 year olds, chances are that at least one of them will venture a bite on a dare. But you're putting what we might assume (albeit perhaps for no good reason since the algae could have theoretically come from anywhere) Atlantic algae in front of one individual Indo-Pacific fish... so I guess you'll just have to wait and see!>
<De nada,
Sara M.>

Re: What is this algae and will a Flame Angelfish eat it? 5/26/2010
Thanks for your thoughts. If you are interested, I will email you the verdict on whether the Flame Angel eats it, in a few weeks.
Sure. Happy Reefkeeping.

Can you help please ? Alg. contr. reading... -- 05/21/10
Hey guy's.
<... and gals>
I have algae growing in my tank that I cant seem to identify.
<Could be most any Thallophyte group, even BGA...>
I have circled the algae I'm wondering about. The next question would be, how do I get ride
of it. Any help would be great thanks.
<... read here: http://wetwebmedia.com/marine/maintenance/maintindex.htm
scroll down to the Algae tray... Bob Fenner>

Metallic And Shiny/Bubble Algae/Bubble Algae (Valonia) Control 5/13/10
Hi Guys,
<Hello Jason>
Have you guys seen these things/creatures? (Attachment). Now there are 5 of them in two different areas in my 55 gl.
<No creatures of the deep, but the unsightly Bubble Algae (Valonia), and can be difficult to control if allowed to get out of hand. Suggest you read here and related articles/FAQ's shown in the header. http://www.wetwebmedia.com/BubbleAlgCont.htm >
<You're welcome. James (Salty Dog)>

Re: Live rocks turning dark greenish-black now sand covered by a greenish mat 4/19/10
Greetings ! O great knowledgeable ones,
<Where? They owe me money!>
About a month ago, I had mailed you regarding my rocks turning blackish green on me. Well now its the sand ! There is this mat of green algae-like stuff growing on the sand and on the rocks. It is cobweb like in structure.
Picture attached. Is this BGA ?
<Yep><<Mmm, maybe more Diatoms/Bacillariophyceans. RMF>>
Grows only in flow deficient places.
<Often the case.>
Should I reduce the photo period ?
<Light is not often the limiting factor for it's growth, phosphates and nitrates are bigger issues here.>
I employ a 20 gal monthly water change. pls do advice.
<More water changes.>
Also I noticed that there is no mention of Calcinus elegans in your hermit crab database. Wondering if it helps in the eradication of BGA.
<Of limited use here. See here and related FAQs for more http://www.wetwebmedia.com/bluegralgae.htm >
Thanks Blesson

Unknown species.. Rhodophyte.. gorgeous 4/14/10
Hey guys,
<Hey Jason>
I have attached two pictures showing a hitchhiker macro algae (assuming but not sure).
<I think you are right!>
It is purple in color and I cannot find any information on what type it is.
<This is a Rhodophyte, but the species I am not sure.. there are thousands.
It came attached to Bali live rock from my LFS.
<It is a very beautiful algae>
Any help you can offer is always appreciated.
<Have a trawl through the many different I.D sites for these on the web and you might stumble on something>
<No problem>

White Algae 4/2/10
I would like to know what this growth of fungi, algae, or sea stuff is.
(see attached pics). It is at a hole in sheet pile where fresh water is interacting with saltwater in Florida waters.
<Interesting... you'll need to look at these strands under a microscope to be sure. And there are salient characteristics of all the probable groups you list... but my guess/bet at this view is a bleached mass of algae of
some sort. Bob Fenner>

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