What does responsible feeding of fish in aquaculture mean?

Responsible feeding of fish means feeding high quality food that is appropriate for the species and age of the fish, in adequate amounts and in a manner that is appropriate for the fish. There are feeds that float on the surface or sink to the bottom, and thus can be adjusted for the particular behavior of the fish. Feeding over a wide area ensures that all fish have access to the food, that there is less competitive behavior and fish population divergence, and that damage to the fish is avoided.