I took them from the wild when they were ¼ inch long back in the spring. There are 2 in a 29 long with lots of room to dig and plenty of hides. It’s just been the past few nights that Rufus (Fowler’s)has been doing this. It breaks my heart to sit and watch him bang his head on the top cover. I may return Rufus back to the wild were I found him. Rosie seems much more content so I don't know if it may be a gender thing or not.