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Thread: Purple algae

  1. #1
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    tracyh80's Avatar
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    Purple algae

    I have been cycling my new 45 gallon set up for a bit over a week now. I have noticed a small patch of purple algae growing on one of the rocks. Is this bad?

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    http://www.cichlid-forum.com/phpbb/v...p?f=7&t=255076I found a post else where about "purple algae"... they thought it may be coralline, but that only grows in salt water and this was in a cichlid tank. The guy wasn't worried about it because the cichlids loved it... here's the address, and there's really good pics... a girl also mentioned she had it in her tank and she got nerite snails and they cleaned it up... hope this is some help :)

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    This is posted in the saltwater forum, so I am assuming it's saltwater :)

    It could be coralline, or it could be something like cyano. What does it look like and what is the texture of it?

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    well, I was reading up on it as well. I have read that its coralline, and others say its bad. Hard to say, I am still cycling my tank at present. no live fish or invertebrates. I was hoping this was a good sign, lol

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    well, its slimy, and it flicked off easily with a straw. so im definetly thinking its not a coralline?

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    Sounds like cyano

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    Build it and the will come
    75 Gal Planted High Tech

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    Click here to enlarge Originally Posted by Nuggs Click here to enlarge
    Sounds like cyano
    I'm not a salt-water guy at all... But cyano was named so because of its cyan (blue-green) appearance (cause of pigments and chlorophyll common to the phyla)... Purple bacteria are divided into sulfur-oxidizers and non-sulfur oxidizers. Either way, both are typically found in anoxic zones... Soooooooo... If it's truly a bacteria and not an algae (might still be algae, like I said, not a salt-guy)....

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    Most likely Cyano.... Can't say for sure without a picture

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