Aquaculture is where people, food, water, and ecology meet. New Alchemy explored aquaculture as a way to produce food from small-scale, local water sources: fish in cages in wild ponds, in ponds dug in the ground, in solar ponds above the ground, and in-ground ponds in greenhouses.

Today the Green Center is promoting studies of oyster culture in coastal ponds and estuaries as part of regional wastewater treatment.