Can you feed goldfish tiny table food in little crumbs?

Commercial Goldfish food is cheap. Specialists have studied and millions of dollars have been spent designing and producing fish foods that are safe to use and suitable for feeding to fish. Why try to give your fish a hard time? Yes your goldfish will eat some human foods but most of it will foul the water and poison the fish. Be smart and use proper goldfish food. Your fish will appreciate it.