well after having being very patient and waiting for my Lasius niger colony to move into there setup for a year, i have finally decided that i don't want to wait any longer so i placed both of my lasius niger colonies (the colony in my shed and the one in my bedroom) into the fridge for 10-20 mins and then took them back to there setup and gently poured them in both colonies got very stressed but have both also moved into the sand soil mix so i believe it is a great success.
Sithmaster676