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Thread: Mass yamato death

  1. #1
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    Mass yamato death

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    My yamatoes were surviving nicely in my tank for 2 months and some of them were quite big already. Yesterday, took out a few plants and planted new ones.

    This morning, all the shrimps died. Some of them turned orange.


    What could have happened?


    I change my water weekly. Shrimps all died after adding new plants. []

  2. #2
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    Possible reasons for shrimp deaths..

    1)The new plants were treated with anti-snail stuff and you did not wash the plants before planting into your tank?

    2)Did you stir up the base fert while uprooting the old plants in the tank? If you did, possible spike in the level of ammonia from the uprooting task caused the shrimps to die off.

    3)Removal of settled plants in your tank cause the amount of available O2 to drop inadequate levels...as plants, fishes, shrimps and nitrifying bacteria compete for O2 at night, the level probably drop to risky levels thus causing all your shrimps to die off ..(shrimps are very sensitive to low O2 and high CO2).

    Okay, next time when you uproot any old plants from your tank, it is always best if you can do a large water change as it removes the junk from the tank and adds lots of O2 back into your tank with fresh water.
    Plant Physiology by Taiz and Zeiger

  3. #3
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    Hi Peter

    Point one could be one of the causes but I dont think point 2....what may have happened is that certain parts of the substrate have gone anaerobic and during the unrooting, the trapped Hydrogen Sulphide escapes and dissolves into the water.....Hydrogen Sulphide is very toxic.
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  4. #4
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    i think point 2 is highly possible....

    cos it happen to me too.....

    all my bee shrimps died... after i take out my glosso

    i think is the base fert that came out....

    however all my fishes is still alive.

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