Found some other notes on another Forum about swim bladder problems, what do you think?
-------------------------------------------------------------- If you do go down the lines of the heated Q/Tank remember not to re-introduce your fish back to the pond until the temperatures are pretty much the same.
This winter this type of behaviour seems to be happening a lot all over the country in unheated ponds. Its been a lot colder for a lot longer this year and certainly seems to be taking its toll. If your ponds not covered it will pay to do so, this will help keep the wind chill off the pond and help the temperature.
If its at that temperature now its probably been down further during the bad weather. It may well have a chilled swim bladder.
There has been a lot of this type of thing happening this winter. The fish have had to sustain a longer period of cold this winter. One thing you can do to alleviate the problem a bit is to do a couple of partial water changes (using a detox / purifier unit or dechlor to treat the tap water). Your mains water is probably around 7-8C so this will bring the pond temperature up a bit for you. If you can then cover the pond with something (even bubble wrap) it may keep the temperature up a bit higher than it has been. Make sure you leave a gap for gaseous exchange to take place.
a basic treatment Kit you will need Anesthetic you will need a koi dealer for this Hydrogen Peroxide 3% strength you can get this from a chemist cost about ?1.30 Iodine Chemist again Friars balsam this is a sealer chemist again Roccol wound cleaner Koi dealer for this one too.
you will need to anesthetize the koi and place it on a wet towel on a soft mat, clean the area with roccol and dry using kitchen towel remove any infected or loose scales with tweezers clean again with roccol.If there is any infection under the scales clean this with the HP using a cotton bud and only clean the infected areas dab dry again and clean with the roccol dry again and treat with the iodine blow dry as best you can and seal with the balsam.repeat this every 4/5 days until healing is taking place then treat once a week.only clean the wound once with the HP unless more infection has taken place then only clean the infected parts with the HP.use the roccol for re-treatment cleaning if no infection is present.
Heating (depending on what temp it is set to) the pond in my opinion is unessansory, too expensive and i think it can cause problems later on and i believe the fish look better and behave better after a winter.
However anything you can do to raise it up slighty (like having a cover made of bubblewrap) would help them.
In terms of the info on treating for ulcers, no topical treatment works so much better, however it can be too much stress for the fish espeically if its a quick one and hard to catch. The only thing i would say about the info that removing the dead tissue and scales is alot harder than it sounds. Theres various treatments for this doing this, but id recommond nt labs or kockney koi stuff, both stuff ive used in the past and was very impressed.
Just been looking at the pictures and its occured to be that it might have a deformed swim bladdered or the brain of the fish didnt develop fully when it was in the egg.
It is hard to tell if it is feeding or not, as KOI does not eat on usual feeding times..... I am assuming that it is eating, as no fish could possibly not eat for nearly that long ( Or can it ?), if you know what I mean. I have not managed to do the treatment as discussed above, still waiting for medication.
As mentioned before earlier in this thread, I would have not fed the fish over the colder winter months. However, as per your advice, I have fed them a smaller amount of a sinking wheatgerm food. The rest of the fish are munching away, but it is hard to tell if the koi in question is eating.
I have notice on the warmer days we are having at the moment, the fish seems alot more active, and does seem to straighten up abit more.
Think I will have to go down the antibiotic route etc as discussed.....