Whenever I put flakes in my tank, they just float at the top and my common goldfish does not seem to ever see them or eat them. However, if I use a stick to push the flake in to the water towards him, he will see it fall down towards him and then he will eat the flake. Is this normal? I always have to "push" the food down towards him in order for him to eat... This is a small common goldfish (2 inches or less) in a 10 gallon tank.
Second question: I feed him about 3 flakes per feeding and do this 2 or three times a day. Is this sufficient?