how to sex Black Skirt Tetras

[Catgirl78]

I have 3 Black Skirt Tetras. I have had them for almost 2 months. We have one that is slightly bigger and gets darker a lot more often than the other 2. I assumed this may be the female. Can someone tell me so I know what we have? :help:

[Sursion]

Wait until they get older and it'll be easier. Females are round while males are pointy.

My Black Skirts show this perfectly. I wish I had a working camera.

[Lady Hobbs]

Females are larger and fatter. Males generally more blacker.

[Mark Hewitt]

What about with the white variety?

[Lady Hobbs]

Bigger and fatter females. All tetra's.