I have a feather duster that I do not think is happy. He is actually coming out of his tube. I can see the worms body. He comes out to the point where I see about an inch of the worms body plus his crown. He has not blown his crown. Could he be hungry? I have not fed him anything special. I did read they like phytoplankton so I am going to get some of that today. Has anyone ever seen the worm come out like this?