Within framework of AQUAEXCEL2020, Tran Quang Hung attended 5-day training course, named Fish Nutrition and Feeding, held in Aquapôle INRA (French National Institute for Agricultural Research) during 18-22 November 2019. The combination between literature and field visit has broaden my knowledge on fish nutrition and expanded my networks in a scientific community. The invited speakers emphasized on macro-, micro-nutrients, energy required by aquatic animal species. On the other hand, potential alternative ingredients and their environmental impacts through Life Cycle Assessments (LCAs) in aquafeeds were also highlighted. Participants took one day trip to INRA experimental facilities, including digestibility unit with continuous fecal collection system for trout, small-scale feed extrusion, and growth trial system, as well as to commercial scale aquafeeds of AQUALIA.