A number of these schools operate multiple tanks in multiple classrooms.
Preference is given to schools in the Connecticut River watershed.
The program is an integral part of the combined four-state effort to restore Atlantic salmon to the Connecticut River watershed. The program involves incubating Atlantic salmon eggs in a chilled aquarium tank beginning in early January. These eggs will have been harvested from salmon which have previously returned to the Connecticut River. The yolk sac is its sole source of food supply. In fact, these fish must be stocked then, because they are about to exhaust the food supply of the yolk sac and they must have access to natural food.