Brown thing on bubble coral

Discussion in 'LPS Corals' started by TinFury, May 26, 2007.

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  1. TinFury

    TinFury Fire Shrimp

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    Can anyone tell me what this brown stuff is? It's been on my green bubble coral since I got it and I have no idea what it is. I really need some input on how to get rid of it.

    [​IMG]
     
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  3. amcarrig

    amcarrig Super Moderator

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    Looks like zooxanthellae to me...not much you can do about it if it is.
     
  4. TinFury

    TinFury Fire Shrimp

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    You mean the symbiotic zooxanthellae? The thing that gives it it's green color? Then why would it turn brown?
     
  5. Tangster

    Tangster 3reef Sponsor

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    Light K value and intensity and photo duration all of these will make them turn off to another color. Like a tan..
     
  6. TinFury

    TinFury Fire Shrimp

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    Maybe too much light then huh? Can too little light turn it brown as well?
     
  7. coral reefer

    coral reefer Giant Squid

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    I think that you don't have enough water flow causing microalgae to form on the bubbles of your Plerogyra! The vesicles of your Bubble coral will adjust to the available amount of light in your tank.
    The other thing that i can think of is maybe your bubble is bleaching, therefore losing the zooxanthellae in its tissue, causing your bubble to whiten in color.
     
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  9. amcarrig

    amcarrig Super Moderator

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    No. Too much light would be the culprit in this case. I have never seen micro algaes grow on a healthy coral regardless of water flow. Just doesn't happen.