i posted some pics of a fireworm for those who don't know what they look like. it is in this forum. if you look through there, it's not hard to find. also, my tank has crushed coral in the bottom right now, and i have lots and lots of little worms too. however, my worms are very small and a whiteish color. i never noticed them, and then one day it was an infestation. i like them though, i have actually seen my banded shrimp pick them out of some holes in my live rock and eat them. also, i'm pretty sure that sometimes my chromis eat them, but i haven't actually seen that, i just know that once i put in the fish, a big chunk of worms disappeared.