IPB University lecturers, Dr. Dinamella Wahjuningrum and Dr. Irzal Effendi from the Department of Aquaculture, Faculty of Fisheries and Marine Sciences (FPIK), returned home to Tanjungpinang, Riau Islands (Kepri). During their return home activities, (14-16/6) both of them provided training on the application of herbs and RAS (recirculated aquaculture system) in mangrove crab cultivation for local residents.