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  • Results 1 to 15 of 15

    Thread: Sores/Ulcers on one koi

    1. #1
      livinzlife is offline Member
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      Sores/Ulcers on one koi

      I have one koi that is showing some sores/ulcers on both sides of the dorsal, near the top.

      This koi came out of winter looking a little "hazy", it's an orange and black koi and the blacks were particularly grey compared to normal. I hoped it was some winter stress that would improve as filtration kicked into gear entering the spring. It's gone the other direction as the weather has warmed into spring and has now turned to sores or ulcers of some sort.

      Any idea of what I'm looking at? Treatable?

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    2. #2
      Marilyn's Avatar
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      First, information about your pond which includes how many gallons, rocks on the bottom, filters, number of fish and water test results would be very helpful. Looking for ammonia, nitrite, pH, temperature and KH values.

      This does not look like an ulcer (redness, inflammation) but rather an injury. The tissue is white. I would sedate the koi and treat it topically with iodine.
      The trick to getting it to heal will be your water quality and is why I asked for the information.
      Still learning as I go but y'all can call me Marilyn

    3. #3
      livinzlife is offline Member
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      Est 4K gallon pond. No rocks in pond. Just liner all around.
      2 BDs and a skimmer to Ultrasieve III. 5500gph pump (with UV in a bypass) to 2x SGs and a shower.
      13 fish, most under 12”

      PH 7.5
      Nitrite 0
      Ammonia 0.25
      Phosphate 0.5

    4. #4
      Marilyn's Avatar
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      You must be using the API Pond test kit. It gives poor readings for pH really. You need the wide range pH test and you need a KH value.

      Do you have anything to sedate the koi to treat?
      It looks like an injury and I would topically address it.
      Still learning as I go but y'all can call me Marilyn

    5. #5
      RichToyBox's Avatar
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      Correction Marilyn, High Range pH test. Wide range as you have mentioned to others is not that readable.

      "Our goal is to assist with emergency and Koi health issues, as well as educate on best practices. Please help us gain a clear picture by giving the original poster time to answer our questions before offering opinions and suggested treatments."

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    6. #6
      Marilyn's Avatar
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      Thanks Rich, that teaches me to try and type between getting dishes done!
      Still learning as I go but y'all can call me Marilyn

    7. #7
      livinzlife is offline Member
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      Yes, I'm using the API kit. Do you have any product recommendations for better PH and KH readings?

      I have clove oil to sedate. I ordered iodine on amazon, it should be here tomorrow.

      One thing that has me worried its more than an injury is the hazy/cloudy color which has been around for over a month. I'm also noticing some white scales near the tail fin that I don't believe were ever white before.

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    8. #8
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      Quote Originally Posted by livinzlife View Post
      Yes, I'm using the API kit. Do you have any product recommendations for better PH and KH readings?

      I have clove oil to sedate. I ordered iodine on amazon, it should be here tomorrow.

      One thing that has me worried its more than an injury is the hazy/cloudy color which has been around for over a month. I'm also noticing some white scales near the tail fin that I don't believe were ever white before.
      http://www.cascade-pond-supply.com/T...Kit-p-580.html

      http://www.cascade-pond-supply.com/T...its-p-521.html
      --Steve


      In the beginning of a change the patriot is a scarce man, and brave,
      and hated and scorned. When his cause succeeds, the timid join him,
      for then it costs nothing to be a patriot.

      ---Mark Twain

    9. #9
      Marilyn's Avatar
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      Quote Originally Posted by livinzlife View Post
      Yes, I'm using the API kit. Do you have any product recommendations for better PH and KH readings?

      I have clove oil to sedate. I ordered iodine on amazon, it should be here tomorrow.

      One thing that has me worried its more than an injury is the hazy/cloudy color which has been around for over a month. I'm also noticing some white scales near the tail fin that I don't believe were ever white before.
      Hazy can be too many things to speculate on without more info hence the request for test results. It could simply be a water quality issue. Koi produce more slime coat and can look hazy in poor water with pH fluctuations.
      Do any other fish have any symptoms? If it is isolated to this koi alone then I probably would use the iodine on the area.

      Really, the best thing is to make sure your water is good for healing and not the problem creating the haziness. If your tests come back in good ranges and there are more fish with issues then mediations may be needed but one step at a time.
      Still learning as I go but y'all can call me Marilyn

    10. #10
      livinzlife is offline Member
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      Sounds good. I've ordered Iodine and the PH/KH tests. Will treat the koi with the iodine and update the test results here on Sunday.

    11. #11
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      I’ve treated the fish with iodine and have updated PH/KH results with the new tests.

      PH 7.4
      KH 2* (35.8ppm)

    12. #12
      Marilyn's Avatar
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      Okay, with a KH value of 2 drops, you are pH crash range. There is not enough alkalinity to keep your pH stable.

      Retest for ammonia, if you have any ammonia readings, please bind the ammonia and raise your KH now to 5 drops.
      Tomorrow raise it to 8-10 drops and do not let it drop below that.

      Here is a calculator to determine how much baking soda to add. It is at the top of the forum on the main page under Koi Calculators:

      https://www.koiphen.com/forums/koicalcs.php?do=calckh

      Put in your gallons. Enter 3 for the DH change and it will give you the amount to add.
      Still learning as I go but y'all can call me Marilyn

    13. #13
      Marilyn's Avatar
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      KH is a value that changes. Also test the ammonia and KH of your source/tap water. This will tell you what happens when you do water changes.
      KH is depleted during the conversion of ammonia to nitrite to nitrate. Thus, it will not be a steady number and is constantly changing as it makes those conversions.

      It is critical to keeping your fish healthy and your bio filter established that there is enough KH to do these conversions.
      Still learning as I go but y'all can call me Marilyn

    14. #14
      livinzlife is offline Member
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      KH at 6 drops today, will get some more baking soda and lift to 8 this afternoon. PH now at 8.0

      How often should I treat the koi with iodine?

    15. #15
      Marilyn's Avatar
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      For smaller issues, iodine may resolve it with one treatment. Occasionally it may take another treatment but if it is not resolved with two I would change to TricideNeo.

      Btw, healing tissue is white/opaque. Tissue that is red has inflammation and infection. If the tissue is white and you don't see redness, I would not keep putting iodine on it.
      Still learning as I go but y'all can call me Marilyn

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