Fish are throwing a fit

Discussion in 'Fish' started by Arana, 9 May 2008.

  1. Arana

    Arana Member

    Messages:
    1,054
    Location:
    London
    I seem to have a problem in my 80cm planted goldfish tank, the fish seem to be taking it in turns to have a fit! which involves zooming around the tank bashing into things, trying to jump out and then laying listlessly on the bottom for about 10mins before carrying on like nothing has happened :wideyed: i've not come accross this in all my years of keeping fish, so if anybody has any ideas what it is and what i can do about it then please help.

    I have done a quick water change but it has not helped.
     
  2. JamesC

    JamesC Member

    Messages:
    1,276
    Location:
    Bexley, Kent
    Sounds a bit like CO2 poisoning. Do you inject CO2 into this tank?

    James
     
  3. Arana

    Arana Member

    Messages:
    1,054
    Location:
    London
    yes it's Co2 injected and pushed quite high, but it has been that way for months and i have not seen any gasping at the surface, is it something that can build in their systems over time?
     
  4. Arana

    Arana Member

    Messages:
    1,054
    Location:
    London
    i have recently increased the flow which should have improved the Co2 disturbution
     
  5. JamesC

    JamesC Member

    Messages:
    1,276
    Location:
    Bexley, Kent
    When CO2 is too high fish don't always gasp at the surface. They appear 'drunk' due to lack of O2 to the brain. Different fish show more signs of this than others.

    Could be the warmer weather and higher tank temperatures that have just tipped the balance for you. I'd reduce the CO2 level a tad and get some good surface movement going.

    James
     
  6. Arana

    Arana Member

    Messages:
    1,054
    Location:
    London
    Thanks James, will do... fingers crossed
     
  7. fishgeek

    fishgeek Member

    Messages:
    117
    Location:
    west sussex
    stray voltage and many neurological disease are other possibilities

    bacterial meningitis
    certain medications
    myxobolus - whirling disease

    beware that changing pH with higher CO2 could also affect the ionised ammonia levels, usually an issue when pH is high which wouldnt be the case unless your CO2 is on and off with solenoid?

    andrew
     
  8. Arana

    Arana Member

    Messages:
    1,054
    Location:
    London
    thanks Andrew, the Co2 is 24/7
     

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