i just noticed a critter in my tank that has been running 6 years. the tank is a tbs liverock and sand tank, so this has been in the tank that long. after much research i have id it as a bottit worm. it,s about 3" long i guess as i,ve never seen the whole thing. just recienty noticed the tenicles sticking out from a burrow under the rock. trying to figure out how to deal with it, or should i try as the tank is running well and nothing seems effected after all this time.