Nix attended George County High School, where as a senior he made 75 tackles, while receiving second-team All-state and district's most valuable defensive lineman honors.
As a senior, he registered 33 tackles (7 for loss), 4 sacks, helping the team rank second in the nation in total defense and to win 28–21 over Texas Christian University in the 2000 Mobile Alabama Bowl.
He is better known for causing a key fumble that helped the team win 9–7 against the Washington Redskins in week 5.
He played one more season for Montreal, before leaving to join the Arena Football League back in the United States.
He was traded to the New York Dragons on March 13, earning Arena Football League (AFL) All-Rookie honors after playing in 15 games, while making 10.5 tackles, 2 tackles-for-loss, 2 sacks (tied for the team lead) and two quarterback pressures.