• Amused
  • Angry
  • Annoyed
  • Awesome
  • Bemused
  • Cocky
  • Cool
  • Crazy
  • Crying
  • Depressed
  • Down
  • Drunk
  • Embarrased
  • Enraged
  • Friendly
  • Geeky
  • Godly
  • Happy
  • Hateful
  • Hungry
  • Innocent
  • Meh
  • Piratey
  • Poorly
  • Sad
  • Secret
  • Shy
  • Sneaky
  • Tired
  • Results 1 to 9 of 9

    Thread: Fries - Some problems - Are they common

    1. #1
      SimonW is online now Senior Member
      This user has no status.
       
      Feeling:
      ----
       
      Join Date
      Jul 2018
      Location
      Sweden
      Posts
      227

      Fries - Some problems - Are they common

      Hello friends:

      Since I moved the fries into my warmed garage for about 3 months ago I have not paid so much attention to them. Half of them have been doing very well, while the other half have died mysteriously. The most usual way to die is that they became thinner and thinner, and then one day they were floating around dead.

      I have not cared to ask why. Please correct me if I am wrong, but I think that the most individual fish fries have poor genes, as no fish species need so many fries with perfect genes to survive. They produce so many fries, and it is sufficient that some pro cent of them have good genes. Nature does not give any species the luxury of many off-springs with perfect genes. Those of my fries that died must have weak genes. That is true even for H. sapiens, therefore we have so many natural miscarriages.

      The surviving fries have been doing very well in the last 1 month. Until for about 10 days ago one of the fries started to float with belly up. My intuition is that it has got constipation, because it had not been eating for some days, and its belly was swollen. I did not mind if it would die, so I just let it be and waited for its death.

      Today I realized that I had not seen it for some days. I worried that it had been dead and rotting somewhere in the aquarium, so I made a huge water change. To my surprise it is still alive, with a bent body and unbalanced way to swim. It had a nice body before.

      And I also noticed that my biggest fry which I after all somehow appreciate seems to have the same problem the above-mentioned fry had for some 10 days ago: Swollen belly, havenīt had food for 2-3 days, and much less agile as it used to be, though not yet floating with belly up.

      All other fries are just fine.

      They have been in an aquarium, and the water is from the tank I have for my bigger koi (not fresh water due to the position of the water outlet). The water is changed every 1-2 days, 50-80% each time.

      I checked the water parameters which have been similar every time I do the checking:

      Ammonia: 0, nitrite: 0.2 ppm (the water contains 0.1 % NaCl), nitrate: 40 ppm, pH: 8.0, temperature: 18 centigrade.

      The biofilter consists of a sponge filter, a lot of plastic plants and gravels on the bottom.

      When I change water I siphon out the most debris among the gravel.

      I have been feeding them with sinking pellets for sturgeon and flakes for tropic fish.

      I just wonder if someone could explain what disease the latest 2 fries have got. Thank you!

      The video shows the first fry today when I have found it:
      Last edited by SimonW; 01-27-2020 at 07:34 PM.

    2. #2
      RichToyBox's Avatar
      RichToyBox is offline Administrator ~
      Koi Health Care Committee Member
      This user has no status.
       
      Feeling:
      Awesome
       
      Join Date
      Feb 2005
      Location
      Sandston, VA
      Posts
      13,838
      That fry would appear to have a broken back, or some form of neuro damage of the spine. One of the common causes of broken backs is electricity. Are your pumps submerged pumps? Are they on Ground Fault Interrupters? Barring electrical, I can only think that their may be some form of neuro toxin that they are being exposed to. As for the high numbers of young dying, in many cases the largest is eating the smaller ones. These large ones are referred to as Tobies.

      "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."

      Zone 7 A/B
      Keep your words sweet. You never know when you may have to eat them.
      Richard

    3. #3
      Nguyen365's Avatar
      Nguyen365 is online now Senior Member
      This user has no status.
       
      Feeling:
      ----
       
      Join Date
      Aug 2018
      Location
      Bakersfield ca
      Posts
      2,610
      Would you cull those out and not grow on?

    4. #4
      kdh is offline Senior Member
      This user has no status.
       
      Feeling:
      ----
       
      Join Date
      Feb 2011
      Location
      up north
      Posts
      7,861

    5. #5
      SimonW is online now Senior Member
      This user has no status.
       
      Feeling:
      ----
       
      Join Date
      Jul 2018
      Location
      Sweden
      Posts
      227
      Quote Originally Posted by Nguyen365 View Post
      Would you cull those out and not grow on?
      I have let the biggest one live and the other smaller one which developed the problem earlier and in a far worse shape (sharply bent) was culled. Now the bigger seems to swim and eat normally, but with slightly bent tail.

      This happened within days (they were completely normal until suddenly floating with swollen belly), and that is the strange thing. There is no electricity in the aquarium (sponge filter driven by air bubbles), and the water is flowing from the tank that I am keeping my precious survivors from last winter. Water parameters have been the same as the tank, except that nitrate is slightly higher (about 40 ppm).

      No more fries have got this problem.

      I guess that many strange things happen to fish, especially fries, that we cannot really know why!

      By the way these 2 fries with problem have similar coloration, and none of the healthy fries have this coloration. That makes me wonder bad genes.
      Last edited by SimonW; 02-09-2020 at 03:09 PM.

    6. #6
      icu2's Avatar
      icu2 is online now Administrator ~ WWKC Treasurer
      is usually here but if not I'm
      probably off flying
       
      Feeling:
      Piratey
       
      Join Date
      Feb 2007
      Location
      Poulsbo, WA
      Posts
      29,595
      I know languages translate differently but it's still driving me crazy.

      "Fry" is correct for one or a hundred. Example:

      I have one koi fry.
      I have twenty five koi fry.

      Both are correct.

      Also, koi is right for one or a hundred. Example:

      I have one koi in my pond.
      I have twenty three koi in my pond.

      Both are correct.

      --Steve


      “First in excellence
      frist in pride"
      --Weeds

    7. #7
      SimonW is online now Senior Member
      This user has no status.
       
      Feeling:
      ----
       
      Join Date
      Jul 2018
      Location
      Sweden
      Posts
      227
      Quote Originally Posted by icu2 View Post
      I know languages translate differently but it's still driving me crazy.

      "Fry" is correct for one or a hundred. Example:

      I have one koi fry.
      I have twenty five koi fry.

      Both are correct.

      Also, koi is right for one or a hundred. Example:

      I have one koi in my pond.
      I have twenty three koi in my pond.

      Both are correct.

      Hehehe. One can be unset for less! :-)

    8. #8
      ricshaw is offline Supporting Member
      is who misses his Koi.
       
      Feeling:
      Bemused
       
      Join Date
      Jan 2016
      Location
      Southern California
      Posts
      2,125
      Quote Originally Posted by SimonW View Post
      I guess that many strange things happen to fish, especially fries, that we cannot really know why!

      By the way these 2 fries with problem have similar coloration, and none of the healthy fries have this coloration. That makes me wonder bad genes.
      French fries

      Koi fry

      big difference

    9. #9
      delbert's Avatar
      delbert is online now Supporting Member
      This user has no status.
       
      Feeling:
      ----
       
      Join Date
      Jun 2013
      Location
      NE Arkansas 7a
      Posts
      2,805
      Cull the bent ones out early



    Posting Permissions

    • You may not post new threads
    • You may not post replies
    • You may not post attachments
    • You may not edit your posts
    •