Poorly fish

[Bella@1]

my granddaughter has a goldfish it is about 5 years old .
A couple of weeks ago it was displaying symptoms of swim bladder disease , it also has a large tumour on its body .
I followed advice given to treat the swim bladder and after 5 days the fish seemed well again .
Today I have noticed the fish is in a vertical position and seems to have lost some of its bounency again , although it does have a spurt of swimming now and again .
I feel it is cruel to keep the fish alive but I'm reluctant to euthanasie , if I decide to euthanasie what would be the most humane way to do it ?
Do I treat again for swim bladder or will the fish become unwell again
Thanks

[fr499y]

welcome to

I don't have any experience with goldfish in aquaria so sadly cannot be of much help. The tumor certainly doesn't look good though.
@black ghost is iodine one of the treatments that work against things like this or am I remembering incorrectly?

[black ghost]

The only reference to Iodine in the Tropical Fishlopaedia says it’s a (human) bactericide that’s not used on fish although some aquarium disinfectants contain it.

@Bella@1 do you have water parameters for us? Temperature, ammonia, nitrite, nitrate, hardness? And what is the fish being fed?

[Martinspuddle]

Greetings & welcome to

[plankton]

Welcome to the forum.
Sorry you have a problem.
If you do decide to euthanise then I would suggest you use clove oil. Pop the fish in another container with tank water and one or two drop of clove oil, then add drop by drop until it passes.

[black ghost]

Pop the fish in another container with tank water and one or two drop of clove oil, then add drop by drop until it passes.

Whatever you do, DO NOT do this.

If you do this the fish will become unconscious and you’ll have no way of knowing when it has died. If you use less than 25drops per litre of clove oil the fish will not die, and it will wake up in the bin.

If you do use clove oil, put a litre of water in a container. Take a little bit of that water out again and add 25 drops of clove oil to that little bit. Then shake it violently (oil and water don’t mix). Then put the fish in the container and add the little bit (with the clove oil) gradually until the fish goes unconscious. Then add the rest so that you’ve added all 25 drops. Then wait a few minutes, then dispose of the fish.

[plankton]

Do what @black ghost says. I read my wrong notes which I've now deleted, sorry.

[Anubia]

The article "Tumors in pet fish" on The Spruce Vets page describes some kinds of tumor and treatment, but that would need a consultation with a specialist vet. If he is still interested in eating, perhaps the swim bladder could resolve?

[Anubia]

Goldfish are hardy creatures, he may recover from the swim bladder problem. The tumor looks awful, but it might not be as bad as it looks

[Anubia]

https://www.fishvetsociety.org.uk/inter ... -pet-fish/ Might give you more info. If the aquarium gets lots of sunlight, it might be better to shade it at some times of day. Good luck, let us know how things turn out.