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  1. #1

    Koi showing red veins

    I have completed a half water change since finding the red veins on my koi. They are quiet lying on the bottom. Some are also striking the bottom so could be irritated. I have included a photo.


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  2. #2
    Senior Member Rank = Adult Champion Gazkoi's Avatar
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    Hi Jess,

    Red veins is often a sign of stress, as is ‘striking off the bottom of the pond’.

    A number of things can cause stress and the behaviour your have witnessed including:

    Poor water quality - have you tested?
    Parasites - have you undertaken a mucus scrape?
    Reaction to chemicals - have you treated the pond recently?
    Addition of new koi?
    Dramatic temperature fluctuations- this will most likely lead to dormancy
    Chlorine - have you changed your dechlorinator regularly?

    Happy to help further upon receipt of some further information

    Cheers

    Gaz
    Hobby and business gone but when you’re hooked you’re hooked.

    Always happy to help!!

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  4. #3
    Senior Member Rank = Supreme Champion RS2OOO's Avatar
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    In the photo it looks more serious than just red veins, it looks quite sore.

    As Gaz says, what are your water parameters?

    If they are all spot on you will need to do some scrapes.


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  6. #4
    Quote Originally Posted by Jessweb View Post
    I have completed a half water change since finding the red veins on my koi. They are quiet lying on the bottom. Some are also striking the bottom so could be irritated. I have included a photo.
    thankyou for my replies. I am going to ripples this morning for new test kits
    I did buy a small new koi from ripples so I will ask them.

    I have a 16,000 litre pond and never had a problem with my fish. 4 days ago there was 1 dead fish and 1 dead frog. No signs of disease. We had a visit from a 2 1/2 foot grass snake, but not sure if it went in the pond. I will post the tests later. Thankyou again

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  8. #5
    Senior Member Rank = Adult Champion Gazkoi's Avatar
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    Where are you located Jess?

    Cheers

    Gaz
    Hobby and business gone but when you’re hooked you’re hooked.

    Always happy to help!!

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  10. #6
    Senior Member Rank = Adult Champion Gazkoi's Avatar
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    How did you get on today?

    Cheers

    Gaz

    Quote Originally Posted by Jessweb View Post
    thankyou for my replies. I am going to ripples this morning for new test kits
    I did buy a small new koi from ripples so I will ask them.

    I have a 16,000 litre pond and never had a problem with my fish. 4 days ago there was 1 dead fish and 1 dead frog. No signs of disease. We had a visit from a 2 1/2 foot grass snake, but not sure if it went in the pond. I will post the tests later. Thankyou again
    Hobby and business gone but when you’re hooked you’re hooked.

    Always happy to help!!

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  12. #7
    Hi all tests were normal, hard water was very high, so hoping some rain will soften it.
    I have started a bacterial treatment, with an extra air line for my 3 1/2 foot sturgeon who is showing no signs of illness. Very confusing. I am in Shropshire.

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  14. #8
    Senior Member Rank = Adult Champion Gazkoi's Avatar
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    Hi Jess,

    If the flashing behaviour etc... continues then you would be best advised undertaking a mucus scrape.

    Cheers

    Gaz
    Hobby and business gone but when you’re hooked you’re hooked.

    Always happy to help!!

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  16. #9
    Extreme Koi Member Rank = Grand Champion Andre Asagi's Avatar
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    Hey, did you dechlorinate the water you put in?

    Was that with liquid dechlorinator? Sodium thiosulphate? Or a carbon filter?

 

 

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