What kind of worm and is it bad?

[Lyvric]

I only see it in the live sand. Thin as a hair brown/red in color, might have white legs.

[ken55]

I only see it in the live sand. Thin as a hair brown/red in color, might have white legs.

try posting this in the New to Hobby area. I'm willing to bet that you will get replys almost immediatly.