Odd looking thing on tetra

[letssurf]

Hi All,

Fairly new to keeping fish. Found this odd looking thing on my tetra.
Could any help diagnose it please.

IMG_3111.jpg

Thanks,
/letssurf

[Limming]

I'm inexperienced but looks like maybe a fungus? A couple of my blood fins have something like that on their lower lip but it doesn't stop them from eating and they have never acted sick so I've just left it alone, although they are much smaller then in the picture.

[Brhino]

is it perfectly round?

What other fish do you have in the tank?

I have corydoras catfish in my tank and when they spawn they stick adhesive eggs to the sides of the tank. The other fish immediately eat the eggs and sometimes they wind up with an egg or two stuck to their noses for a while.