ok - guys (and girls) i'm really freaking out now - i had blue linicka that died and i fished him out - while i was in there, i re-arranged alot of my rocks - tank is 90g fowlr up for a year with about 125 # of LR never before disturbed - after moving the rocks around i noticed about 6 or so of these guys coming out and slithering - bristleworms ? - in addtion , they were secreting stuff out their ends - what looked like a puff of smoke in my tank - what is that ? !!