The nest needs to be placed out of the sun and where temperatures do not fluctuate dramatically. The ants can die very quickly if sun hits the nest. The ants will do best if the nest is not moved, bumped or disturbed. If it needs to be moved, carry it carefully to reduce vibrations. When assembling the water tubes, make sure water doesn't leak out.
Water can leak out and flood the nest.
If the only water tube is a moldy one, the ants may not have access to the water supply and will die. Place another water tube in the shoe box. If you don't find a queen ant, a large portion of the colony with brood can be collected. Behavior will be normal for a while as long as there is brood. Without brood, there is not much going on, not even foraging.