Ok i am a complete idiot and tried to move my feather duster. Well he must of attached himself to the rock and well the tube came out but he didn't, but i didn't pull it out hard but real gentle thinking he was coming out with the tube. My question is will he eventually grow another tube or is he done? As of right now the only fish i have in there is a green manadrine and i dont think he will bother the duster. Thanks in advance.