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Old 01/21/2012, 09:57 AM   #1
Tidy Waves
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Maroon Algae

I have a maroon colored algae spreading on my live rock. It is similar in color to cyano, but it is probably 1/4" thick and more white colored underneath. It is velvety to the touch and very difficult to remove. It won't come off with a turkey baster and I can not siphon it out. I can get some of it out with a toothbrush, but I can't reach in the nooks and crevices and it grows back rather quickly.

The tank is a 65 gallon reef with a 1" sand bed and 75lbs. of live rock.
It has a finger leather, a frogspawn, some button polyps, and 6 fish. Nitrates are less than 5 and phosphates are .02.

Thanks in advance for the help!


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Old 01/21/2012, 12:54 PM   #2
Reef264
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What you may have here is Gracilaria algae, Cotton Candy Algae, or Cyano.From what you described, I am leaning towards Gracilaria, because when I had Cyano, It came off with ease, and Gracilaria has the tendencies of what your describing.

Can you get a Picture of it?


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Old 01/21/2012, 01:03 PM   #3
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your algae is very easy to beat with this method
http://web4.reefcentral.com/forums/s...2082359&page=4

post before and after pics I am certain it will kill all of it.


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Old 01/21/2012, 01:08 PM   #4
Tidy Waves
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Quote:
Originally Posted by Reef264 View Post
What you may have here is Gracilaria algae, Cotton Candy Algae, or Cyano.From what you described, I am leaning towards Gracilaria, because when I had Cyano, It came off with ease, and Gracilaria has the tendencies of what your describing.

Can you get a Picture of it?
Reef264,

Sorry, I don't have access to a camera. I looked up Gracilaria algae and Cotton Candy Algae, and it is not either one of those. I have had cyano outbreaks before, and it's not that either unless there is a form I am not familiar with. It has the same color as cyano, but it is at least a 1/4" thick and feels like a piece of velvet.


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Old 01/21/2012, 01:15 PM   #5
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I bet this is close?
look at the red algae surrounding the corals

http://www.advancedaquarist.com/2010/4/aquarium

a spot treatment with peroxide will wipe it clean off the rocks, making look like it was never in the tank in just a few days.


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Old 01/21/2012, 01:19 PM   #6
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Alright that's fine, I can work without photos.You say it feels like velvet, It may be a Fungus.


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Old 01/21/2012, 01:20 PM   #7
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Try Algaebase.org they can identify just about any kind of algae.


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I'd rather Die on my feet, than Live on my Knees.

Current Tank Info: 150g SPS Reef, 2x250w 14k Pheonix Metal Halides w/T-5 Actinics, 2 Tunze 6095's, Tunze 7096 controller, Ozone, Precision Marine Skimmer, Reef Octopus Bio-Churn Bio Pellet Reactor, GFO & Carbon Reactor, Ozone Reactor, ATO, Reef Keeper.
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Old 01/25/2012, 08:13 PM   #8
brandon429
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I would like to know how the identification went and how the outcome is going. It is impotant to know that if you used the peroxide method as a spot treatment the area of algae growth would be totally gone at this time.


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