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Guppy with white fungus

Discussion in 'Tropical Fish Emergencies' started by Cas Tiel, Apr 5, 2018.

  1. Cas Tiel

    Cas Tiel New Member

    Mar 15, 2018
    Likes Received:
    Hi everybody,
    I have 5 guppies in a 40 litre heavily planted tank. Sherlock the guppy has a fine layer of white fungus (not sure if it is fungus, its just a guess) around its face (mainly the eyes and mouth). It is white/clear and fluffy looking. I really need help with this just in case it is contagious to my other guppys.

    Please any diagnosis or advice would be highly appreciated.


    p.s a picture is attached, however it doesn't fully show the extent of the "fungus".

    Attached Files:

  2. Colin_T

    Colin_T Member

    Jan 26, 2008
    Likes Received:
    Perth, WA
    looks like Columnaris, a real nasty bacterial infection that needs treating immediately or you will lose everything in the tank.

    If you have a quarantine tank put him in it now and see what your local petshop has for treating Columnaris. You can add a heap of salt to the tank and that might help but there is no guarantee if it is Columnaris.

    If you add salt you will need 2 heaped tablespoons of rock salt or swimming pool salt for every 20 litres of water.

    To work out the volume of water:
    multiply length x width x height in cm
    divide by 1000
    = volume in litres.

    when you measure the height, measure from the top of the substrate/ gravel to the top of the water level.

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