Quite easy, actually. I heated up the end of the glass test tube over the fire. Then I just pushed it into the plastic and it melts away. The plastic tube conecting the two boxes is the same size as the glass tube used for making hole... so it is a perfect snug fit.
@kashmir79
The majors are great. They are walking around like bulldogs and like they mean business.
It took forever for them to hatch. Much longer than the normal worker. But it was worth the wait. 









