The goal of the aquaponics system on the Island School’s campus is to determine the feasibility as a low-cost food production system for the region. Island School’s model system currently utilizes water from rainwater catchments to ensure cost-effectiveness and environmental friendliness. Nile tilapia (Oreochromis niloticus) are raised in inexpensive tanks and grown under ambient temperature and light conditions to help minimize operating costs. A gravity flow system also helps to reduce costs by passively moving nutrient-rich water from the fish tanks, through a clarifying tank, biofilter, and ultimately into shallow growbeds. All of the greens that are produced by the system are used in the campus dining hall to feed the students, faculty and staff. Regular tilapia harvests also provide the dining hall with fresh fish which are filleted by staff members on-site.