I have always used TetraMin Flakes for my fish. They seem to love it and thrive well on it. My husband is the one that takes care of the aquarium mostly.
The containers range from small to very large, we always buy the largest that the store has, for the overall value.
It is clean, and the fish always seem to eat all that is given to them.
We feed them once in the morning, and nothing much goes to the bottom.
It seems to give them a healthy glow to their skin. "Scales" if you will.
It has all the essential vitamins, and mineral, and nutrients that the fish needs to be healthy and happy....