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  1. #1

    My fish are being eaten alive

    My aquatic center has no idea, nothing showing on scrapes , this will be my 2nd fish lost this way. I have tried various treatments, water tests all with range.


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    Last edited by KevinWilkinson; 01-08-2021 at 08:28 AM. Reason: No pic!

  2. #2
    Senior Member Rank = Kyusai Djstiles999's Avatar
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    Could be bacterial, what sort of set up do you have and what were the readings on your tests?

  3. #3
    Looks like a we’ll advanced ulcer.

  4. #4
    Moderator Rank = Supreme Champion Feline's Avatar
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    These are full thickness ulcers all the way down to the muscle layer.

    They can be caused by bacterial infection with certain types of bacteria, flashing damage when fish are irritated by water quality or parasites, or physical damage on a sharp object/ predator in the pond.

    Try and rule out water issues and sharp things first, then take a look at cleanliness in the filters and pond for any source of infections. You might need to treat the pond with something like Chloramine T and/or salt. Affected fish would need topical treatment and sealing of the ulcers and ideally antibiotic injections. Do you have a quarantine tank to keep the affected fish in?

  5. #5
    Senior Member Rank = Sansai Dom G20's Avatar
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    Looks very nasty!

    If your scrapes are clear then you can rule out parasites opening wounds to allow the bacterial issues in.

    Like has been said there may be sharps such as pots, edge of bottom drain, or rocks allowing the bacteria in.

    I had a couple of fish show early signs of ulcers I tried chloramine t nothing seemed to work. I then tried virkon aquatic which healed up the redness in a couple of weeks.


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  6. #6
    Senior Member Rank = Sansai Dom G20's Avatar
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    Quote Originally Posted by Feline View Post
    These are full thickness ulcers all the way down to the muscle layer.

    They can be caused by bacterial infection with certain types of bacteria, flashing damage when fish are irritated by water quality or parasites, or physical damage on a sharp object/ predator in the pond.

    Try and rule out water issues and sharp things first, then take a look at cleanliness in the filters and pond for any source of infections. You might need to treat the pond with something like Chloramine T and/or salt. Affected fish would need topical treatment and sealing of the ulcers and ideally antibiotic injections. Do you have a quarantine tank to keep the affected fish in?
    I do however agree with feline as needing antibiotics in this case


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  7. #7
    Senior Member Rank = Hassai Rapleyr's Avatar
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    Might need to swab and send off for testing


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  8. #8
    Senior Member Rank = Yonsai KevT's Avatar
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    Hi

    You don't say if this is one fish or many or how long the pond has been running?

    If it's a few fish then you need to try and find the source of the "bad" bacteria. You don't say if you have a bottom drain - if so have you flushed it to see if there is a build up of muck in the pipe work. As stated have you checked your filters to see if there is a build up of muck or indeed a layer of muck on the pond bottom. My first option would be a good clean - not with tap water as this will cause "new pond syndrome" if you destroy the good bacteria in filters with chlorine. If you remove the fish and do a big clean up when topping up you need to use sodium thiosulfate before adding the fish back.

    The pond might need a total clean out and potassium permanganate treatment for 24hrs if you can't get on top of the bacteria and a start from fresh with "new pure pond bacteria gel balls" and reduced feeding for a few months

    Don't forget that simple salt baths might help with the fishes ulcers?

    KevT

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