While inspecting the tank tonight, I saw what I thought was a peanut worm duck into a small hole. While I watch using indirect flashlight light, this little critter reached up,from a small hole hidden by small patch of hair algea the snails just will not eat, about 2.5 inches and tried to grab onto another patch of hair algea and pull it down to it. This worm like fellow was white, very thin and very very quick. It looked to be fairy strong judging by the way it grasped onto the algea and tugged. It did this a few times before the light spooked him. It was amazine how quickly it reached up and streched out. I'vw checked the FAQ
's and didnt find anything.