Hi, I bought my Lasius niger colony in September 2009 the first year I didn't hibernate them, then in 2010 October to 2011 March I hibernated them, but they haven't dug themselves in the sand, they live above the ground in a corner and have built a big wall against the drainage tube, all these year's.
1. question- Does the drainage tube blocks the way for the queen to move?
2. Do I have to remove the drainage tube?
3. Will they even dig in?




