90% Mortality in Our Biofloc Challenge Tanks | What Happened?

Поделиться
HTML-код
  • Опубликовано: 5 янв 2025

Комментарии • 19

  • @Praesciens
    @Praesciens 2 года назад +5

    Thank you for sharing so honestly. It is when things go wrong that we learn the most.

  • @Rioalbab01
    @Rioalbab01 2 года назад +2

    vannemei will start surfacing only after DO hit below 2,5 and won't kill vannamei that quickly. its the nitrate from the sludge that turned toxic in closed water system it is crucial to maintain waste (ammonia,ammonium,nitirite and nitrate) through filtration since you dont have photosynthetic microbes in the system to remove Nitrate. Bacillus will only convert ammonium (NH4) to Nitrite (NO2) and Nitrate (NO3) while at low concentration that might not be dangerous but as it accumulates, the reduction happen and disaster knocking on your door

    • @toobaffled_on_X_site
      @toobaffled_on_X_site Год назад

      Are you saying this wouldn't occur if the pond was under the sun?

  • @prasanthvenkat1996
    @prasanthvenkat1996 2 года назад +2

    Excellent presentation about the problems of Vannamei Biofloc culture system.

  • @mufeednational6438
    @mufeednational6438 2 года назад

    Very nice information

  • @raulcadelina9744
    @raulcadelina9744 2 года назад +1

    I'm following all of your blog and I'm surprised the devastation

  • @ravinderdahiya7247
    @ravinderdahiya7247 2 года назад +1

    What's the Salinity of this tank?

  • @nazriahmad3158
    @nazriahmad3158 Год назад

    Biofloc system requires aerator 30L/min of 1m cubic water. Thats why TAN was higher . Nitrification xtvt requires oxygen higher.

  • @carljustinemosquida4727
    @carljustinemosquida4727 Год назад

    can we still eat them?

  • @hsy737
    @hsy737 2 года назад +1

    So low DO causes mass mortality....
    Then what caused low DO?
    overdose of molasses or insufficient aeration?

    • @BUS-US
      @BUS-US 2 года назад +1

      Seems like all the above and low maintenance

  • @penguinpringles
    @penguinpringles 2 года назад

    Why does the water look so dirty?

    • @somaliano99kingkonghimself75
      @somaliano99kingkonghimself75 Год назад

      It is biofloc culture good bacteria I think this is nothing for you I have studied biofloc PH levels ppm aireation if you have intrest let me know

  • @faizsofari8808
    @faizsofari8808 2 года назад

    so what's the main reason?

    • @RASAquaculture
      @RASAquaculture  2 года назад

      Low dissolved oxygen level

    • @faizsofari8808
      @faizsofari8808 2 года назад

      @@RASAquaculture much appreciated for replying me. what's your opinion about nanobubble technology? I'm about to use it on my shirmp farm. so the point is
      1. is nanobubble really makes a difference?
      2. is there any negative effect of too high D.O. level?
      3. some say nanobubble/microbubble kills small bacteria, is it disturbing the process of plankton fermentation?

    • @toobaffled_on_X_site
      @toobaffled_on_X_site Год назад

      @@RASAquaculture was it only because of the biofloc sludge or because of the alkalinity and other factors?

  • @mangoparadiseexports7820
    @mangoparadiseexports7820 2 года назад +1

    Ohh