if it makes you feel better, I had a terebellid hide for a full year as a hitchhikerYeah well to be fair I tried to remove it before taking pictures for an ID, figure if I CAN remove things and then ask questions that's the goal. At this point yeah I am planning to leave it be. There was a slight paranoid concern that I was fostering a bobbit worm which is obviously a little out there, but you know, paranoia about pests. Still genuinely surprised anything managed to hitch hike on a nem. That's the only thing it could have come in on though.