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Shrimp KO'ed, CO2 To Blame?

Discussion in 'Inverts' started by csmith, May 24, 2010.

  1. csmith

    csmith Guest

    Local Time:
    5:42 PM
    As the subject says, my shrimp were found lying on their sides. I have two japonicas and had two "pinnochio" shrimp. Yesterday I found one pinnochio lying on his side on the left side of the tank. His feet were kicking, but he wasn't getting anywhere obviously. My japonicas were on the right side of the tank doing just fine. Today the pinnochio is dead and my two japonicas are maybe an inch away from him in the exact position I found the pinnochio shrimp, feet fluttering. (My second pinnochio was found the same day I bought him curled up on the intake of my CO2 powerhead, so I can only speculate as to the cause of death.)
    My CO2 blows in from the left side of the tank to the right, and there's another powerhead on the left side back wall, about a 1/4 of the way from the side pane, that blows that flow forward and down the front glass and then back across the substrate. A powerhead doesn't exist on the right side of the tank doing the same thing. Could the CO2 levels on that particular side be so much higher to gas the shrimp? I didn't come across any issues like this until moved the second powerhead on the back glass (as it was previously on the right blowing CO2 down to the stems).
    It's a 20 gallon high. It's been set up for two weeks now, and this past Saturday I added about an inch or two of substrate but I'd believe the ammonia issue has passed.
    #1 csmith, May 24, 2010
    Last edited: May 24, 2010
  2. Biollante

    Biollante Lifetime Charter Member
    Lifetime Member

    Jun 21, 2009
    Likes Received:
    Local Time:
    10:42 PM


    I have a bit more speculation on your twin posts.

    For now though I tend to think it is not CO2.

    It sounds more like ammonia, I think your "trouble in a hurry" photos seems to confirm that.

  3. csmith

    csmith Guest

    Local Time:
    5:42 PM
    Speculate away. I'll answer both on the other thread, I made two threads because I was hoping I was having seperate issues.

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