I was recently lookin' in my tank at night with a flash light.I noticed what looked like fishin' line coming out of a small hole. It was some kind of critter it has maybe 5 or 6 of these fishin' line tenticles that come out and look for bits of whatever. The tenticles on this thing are almost clear but a little milky white. They are almost a foot long no joke, it tends to creep back in when the light hits it. I know this isn't bad for the tank, but what the hell is it? Does anybody know a web site to classify things like this?I used to have a magazine with a classification chart but I have lost it since. bummer !