Neon has a white thing on its side

[Darryl1984]

One if my Neons which I've had since November last year has become tiny and about half way down its body there's a white looking sore appearing. It's not really eating and he's so slim and tiny.

Worried it's something that all end up with although it's just seems to be this one at the moment.

Any thoughts.

[Carylnz]

It is hard to tell on neons (well it is for me anyway!) as they are so small. Anything you can add to the description apart from it being white?
If it is sticking out and fluffy it will be a secondary fungal infection.
It could also be a tumour, bacterial infection or internal parasite of some sort making its way to the outside. Can you see anything hanging off it at all?
I would euthanise it and keep an eye on the other fish in case it has spread.
Do not medicate unless you can work out, for sure, what it is the fish has.

[Darryl1984]

I know I was a bit vague lol. It's on both sides of the tail base at the mid body. It's looks like a foam or ulser or something. I try my best to take a picture.

[Darryl1984]

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OK so I tried my best to get a picture which was a nightmare lol. Hope they help

[Carylnz]

Not in the least
It took me several seconds to even find the neon in pic 2
I stand by my above suggestions.
If it is on both sides I suspect a tumour bursting out, or parasites and it is fluffy with secondary fungus.
If it was on the widest part of the fish I would have thought it had jammed itself somewhere and got an injury.
Considering it appears to be wasting away as well, I would euthanise it.

[Darryl1984]

Ok. Guess it's for the best. Hope I can catch him.