Traditional farmers of milkfish and shrimp use 80% Indonesia's production area, but produce only 10% its shrimp. A coastal protection project funded a 16-day aquaculture field school (AFS) in order to train 277 Low External Input Sustainable Aquaculture (LEISA). Its cost was 1,060 USD per farmer. In 2017 2018, the monitoring database completed records yields practices 125 participants monitored...