Black Mass/growth On Goldfish Head

DoughBoy93090

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Hey everyone!

I have a few goldfish that survived a tank cycle from a few years ago.

They have been happy in a 20 gallon with basic filtration.

About a year ago one of them started growing a mass in front of its gills and behind its eyeball.

He is about 4 inches and this mass is now about the size of a small marble. He is happy, and is the only goldfish that has received a name from my wife or myself. He has been aptly named Cancer fish....

Since the start of the growth we assumed he was done for and gave him little hope.

After about two years now he’s fighting on and like the growth on his face we have grown attached to him.

I don’t feel there is much we can do for him besides make him happy or put him down, but if anyone has any ideas or tips that would be great!
 

TheMadScientist

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I don't know about the mass But 4 gold fish in a 20 gallon is bad I have 2 in my 55 and I need to get them in my pond quick. The bio-load of 4 gold fish specially with standard filtration is way to much for that tank
That alone can be causing massive amounts of stress and health problems
 
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DoughBoy93090

DoughBoy93090

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TheMadScientist said:
I don't know about the mass But 4 gold fish in a 20 gallon is bad I have 2 in my 55 and I need to get them in my pond quick. The bio-load of 4 gold fish specially with standard filtration is way to much for that tank
That alone can be causing massive amounts of stress and health problems
It was only supposed to be temporary but we have all been down that road. They’re getting upgraded to the 60 gallon once my 75 is cycled.
 
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DoughBoy93090

DoughBoy93090

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C2EE0DA1-5F77-4AB4-881E-F59077CCAB82.jpeg
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Here are a few pictures of him.
 

Skavatar

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its a tumor, not much can be done except a costly vet visit to remove it.
 
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DoughBoy93090

DoughBoy93090

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Skavatar said:
its a tumor, not much can be done except a costly vet visit to remove it.
I’ve done some reading. Others has had them fall off after awhile. We will see what happens.

He’s very happy in the 75 gallon at the moment lol.
 

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