Anything that will hold the 2 habitats and still allow some visibility will work. I have 3 different sizes of sterilite containers with a few airholes drilled in them.Diane - do you happen to have pictures of how you set up your breeder box? I'd be very interested to see them.
I'll attached a few lousy photos to show them but anything works. This allows me to move on to other things in life while the pair gets to know one another. Diane