White Spot on Cardinal's Tail?

[OldFishKeeper]

Any idea what this is? This cardinal is older and the spot has been there for some time.

 

[bgarthe]

A better pic might help.
The fact that it has been there for a while and not spread to other fish is a good thing. I learned long ago not to guess prematurely and that my 67 year old eyes need better pics.

 

[Innesfan]

White lesions on the csaudal peduncle are often an early indication of 'neon disease'.

 

[OldFishKeeper]

A better pic might help.
The fact that it has been there for a while and not spread to other fish is a good thing. I learned long ago not to guess prematurely and that my 67 year old eyes need better pics.

I know what you mean. My eyes are older than yours. I will try to get a better pic. I suspect it a cancerous growth but, who knows?

 

[bgarthe]

Or could be Lymphocycstis since it has been on for a while wo spreading to other fish. Is it at all fuzzy?

 

[anewbie]

It could be fungus if he scraped himself.

 

[OldFishKeeper]

Or could be Lymphocycstis since it has been on for a while wo spreading to other fish. Is it at all fuzzy?

It is not fuzzy. Its in a heavily planted 75g so it not easily caught. Here is another pic...

 

[GaryE]

Lots of could be. A cyst. A bacterial or viral growth. Cancer or a benign tumour. A wound. The number of things that could cause that is vast.

When I see that on newly arrived fish, it's bad news. But on an old fish where the problem isn't spreading, it's probably benign or slow moving. How the fish dies starts to matter though, to be very cold about it. If it does transmit, that's often via scavenging fish eating the corpse. If you can isolate the fish, it's better.

It could be cancerous, but we go back to the "could be" problem. All we can do is decide on how we react. I hate to euthanize fish that are still able to live. We can't tell if the problem is painful. We don't know if it's communicable.

 

[OldFishKeeper]

Lots of could be. A cyst. A bacterial or viral growth. Cancer or a benign tumour. A wound. The number of things that could cause that is vast.

When I see that on newly arrived fish, it's bad news. But on an old fish where the problem isn't spreading, it's probably benign or slow moving. How the fish dies starts to matter though, to be very cold about it. If it does transmit, that's often via scavenging fish eating the corpse. If you can isolate the fish, it's better.

It could be cancerous, but we go back to the "could be" problem. All we can do is decide on how we react. I hate to euthanize fish that are still able to live. We can't tell if the problem is painful. We don't know if it's communicable.

Thanks, Gary. We are of like minds, especially on the treatment of our fish. I hate to see suffering of any kind and haven't seen any in this fish. I also do not want anything to spread to others. So, I will take your suggestion and isolate this fish. When the time comes, I believe a short bath in a mix of water and vodka is a recommended procedure...