Fish/shrimp growth dependent upon the external supply of feeds, either (i) in the form of supplementary feeds (e.g., single feed ingredients or mixtures of more than one feed ingredient) in combination with endogenous feeding regimes, (ii) in the form of a single food item of high nutrient value (such as low-value fish/trash fish) and/or (iii) in the form of a nutritionally complete formulated compound diet (farm-made/semi-commercial feed or commercially produced industrial pellet).