Fish do not need to be hand fed or otherwise. These animals have an inborn sense of what to hunt for and what to eat. No matter how fun and rewarding the gesture is, do not feed the fish with bread. This food is certainly not on the fishes list of dietary supplements and as such their digestive tracks are not equipped to handle it. Also feeding fish will make them dependent and lazy causing the marine life to depend on handed out titbits rather than hunt for their daily meals.