Red balloon looking thing

Discussion in 'ID This!' started by Reakwonthachef, Apr 16, 2011.

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  1. Reakwonthachef

    Reakwonthachef Feather Duster

    Joined:
    Mar 12, 2011
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    Location:
    pennsylvania
    Any idea what these are. They always try to grow but never get bigger than a pea size. I moved the rock closer to the light and they've gotten huge. Im talking about the red balloon things on the rock.
     

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  3. missionsix

    missionsix Super Moderator Staff Member

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    Location:
    Bend,Oregon - USA
    Botryocladia skottsbergii?
     
  4. 2in10

    2in10 Super Moderator

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    Aug 6, 2009
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    Sparks, NV
    I agree with missionsix on Botryocladia, bubble algae
     
  5. barbianj

    barbianj Hammer Head Shark

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    Sep 27, 2009
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    Port Washington, WI
    +2. You don't want that in your tank.