Hi.
I want to be able to understand the symptoms 100% so as to make a correct diagnosis and recommend a proper treatment.
Could you clarify what "enthrails" are?
.
Thank you for the clarification.
I don't think that swim bladder disease is the problem here as
from what you've described it appears the fish is suffering from gill parasites. You mentioned that the weather has been cold where you're located and this drop in pond water temperature most proabably stressed the fish thus leaving them it open to disease.
I don't think that swim bladder disease is the problem here.
The adding of pond salt was fine but the bacterial medicine won't cure a parasite problem so what I suggest you do is make sure the pond salt is dosed at the appropriate level as I'm not sure if you underdosed. The product label on the salt product will state the amount of salt to add per litre.
After verifying and adjusting, if needed, the salt, level begin to treat the fish/pond with an anti-parasitic medicine designed to treat gill parasites. Listed below are 4 links. The first 3 links will show you medicines more easily found in the UK and the fourth link a medicine more easily found in Australia. Whatever medicine you decide to use just follow the directions on the product label for usage.
Best wishes and please let me know if you have any questions.
http://www.edirectory.co.uk/pf/880/mia/d/fish+treatments+medicines+interpet+koi+anti+parasite+1l/pid/5753839
http://www.edirectory.co.uk/pf/880/mia/d/fish+treatments+medicines+waterlife+sterazin+pond+500ml/pid/5753845
http://www.edirectory.co.uk/pf/880/mia/d/fish+treatments+medicines+anti+parasite+pond+interpet+1l/pid/5753841
http://www.aristopet.com.au/?page=72&item=761&product_search=&dosearch=
YOUR TROPICAL FISH RESOURCE
OVER 20 YEARS EXPERIENCE W/TROPICAL FISH---BREEDING, MAINTAINING, CURING
Sorry not to reply earlier but I do accept the answer given. Perhaps it came a bit too late as my fish has now been burried in my garden. I did isolate the fish and gave the treatment as directed. Though it was lying continually on one side, the gills were still moving on the first day of the treatment, on the second day the vital signs were no longer there. Never mind. I have learnt with this experience that perhaps I should have sought advice earlier. I would like to thank you for the prompt reply at the time.
I'm very sorry to hear about the fish's passing.
Thank you for your accept.