i have these things all over the rock in my tank. i don' t what they're called but they look like the stalks of feather dusters but don't have the feathery part at the tips. they're not causing problems, they're just annoying to have in the tank. every time i feed the tanks they somehow know this and produce this mucous that catches the food. it looks like snot. also when i have to move live rock sometimes i cut myself on these things. they also get in the filters as well. i would like to know the easiest way to get rid of them. the best way i would like to get rid of them is whether or not something eats these things. i could post a picture but this site doesn't like the type of picture i have.