Thread: Help with Sick Koi Wanted

Hi all,
Can you help?
My pond is 4000 litres well aerated and filtered with plenty of plantis. Test parameters are: PH 8.5; Ammonia nil; nitrite nil; temp?? air temp uk
I have 4 medium sized koi and about 10 goldfish all been quite happy till about 5 weeks ago.
Big white koi started erratic swimming behaviour and showed some red streaks on his sides and top. At first I thought it might be sunburn.
Asked first dealer who said give it a salt bath, 2nd dealer advised two doses of malachite and formalinm 3rd dealer suggested using supertabs.
So gave two doses of malachite and formalin, followed by 5 day doses of supertab at0.1 mg/litre, followed by individual salt bath using "salt and no vinegard" article by Duncan Griffiths. I reckon dose was about 14% salt. Dipped him for 4 mins when he went onto his side, gave him another minute after "Poking"him and then returned to pond.He seems to have recovered from that.
However behaviour still a bit strange. He swims erratically fast, puts his head out the water and seems to spit a few times, then returns to normal.
Qu: Is this koi in pain, should I euthanise him
Qu: Any other suggestions to treat him?
No other fish affected or showing any adverse signs.
Utube link for video is: https://youtube.com/shorts/7sktVOEGPSc?feature=shared

Heres hoping, many thanks in advance

Hi.Can the fish go down deeper in the water?

thanks for interest
yes he can swim at the bottom, mostly spends his time there then every now and then comes up and has a manic thrashing moment, barrel rolls and pokes his head out the water bu about 3 inches then does a couple of small spits.
did manage to get tube video uploaded:
https://youtube.com/shorts/7sktVOEGPSc?feature=shared

Originally Posted by dadthomps@hotmail.co.uk

thanks for interest
yes he can swim at the bottom, mostly spends his time there then every now and then comes up and has a manic thrashing moment, barrel rolls and pokes his head out the water bu about 3 inches then does a couple of small spits.
did manage to get tube video uploaded:
https://youtube.com/shorts/7sktVOEGPSc?feature=shared

I would have to say swim bladder problems.

Sent from my moto g32 using Tapatalk

Originally Posted by KiOgon

Koi can behave very strange - like that - with gill flukes, you should get some scrapes and look for flukes with a microscope, or see if you can get someone to do that for you, please don't euthanise him/her, it needs diagnosing then treatments.

thanks for reply.
Would it be easier to just treat for flukes anyway, as opposed to doing scrapes first? Less stress to fish/