Yes, with some clarification. Feeding mature fish more than once each day is not generally recommended. I feed once daily, except I miss two, sometimes three, days each week. Water change day is a "fast" as one should never do this sort of work after feeding the fish, and it is best to give them some "down" time after the W/C. Though a couple hours later could be the time to feed the weekly "treat" of frozen daphnia or bloodworms.
Fish in an aquarium do not need the energy like wild fish, that are constantly foraging for food, perhaps avoiding predators, etc, all of which takes considerable energy. In the aquarium one would hope neither of these issues applies, so food energy should be less. And as fish do not need energy to provide a regulated internal body temperature like mammals and birds, that means significantly less food. Think of it something like, your dog needs considerably more food per body mass than do the fish.
