The friendliest place on the web for anyone with an interest in aquariums or fish keeping!
If you have answers, please help by responding to the unanswered posts.
I've never owned one but from what I've read, the males have a more copper color and the females will be pale and a silverish color. I could be wrong though.
But with most tetras the female will have a more plumper body and the males will be real slim.