Don' know if anyone else has had this problem and done what I have done today. Went to let my new tube worm out of its transport bag. As I let it slowly sink to the substrate I saw with horror the worm came out of its tube. What would you do? Well I read that a worm will build a new tube relatively quickly. As I watched wondering what to do my Doctor fish decided to have a nibble at the worm. That was it the poor thing wouldn't last an hour unprotected. So I could only think that it needs to be back in its tube. So with tube in one hand and worm in the other I slowly eased the tail end back in to it's tube. As I slowly rubbed and eased the poor thing back in it somehow realised what was happening and all of a sudden quickly shot in to its tube. I've placed it so it is well protected from my Doctor and I suppose only time will tell if my rescue/first aid has been successful.