In this literature review we summarize experimental data on the amino acid composition of prospective feed objects for fish aquaculture: agricultural crops, insects, annelids, higher crustaceans, animal waste, phytoplankton, zooplankton, macrophytes, microorganisms. We performed a comparative analysis of the composition of amino acids in promising aquafeed and fish flour, traditionally used for fish feeding. We conclude that each of the considered feed objects in terms of amino acid composition can be a component of fish nutrition, and also represents a potential for the production of alternative feeds. It is important to take into account the species-specific needs of the fish in order to produce high quality aquaculture product. Amino acid composition of the fish food can be controlled during their production. It is assumed that the information presented in the article will be useful for the development and production of new aquafeed for fish.