Yeah can be a bit of a pain but lucky its only once a week 2 if I can be bothered.I turn off my pumps and wavemakers to feed corals and my fish. Fish mainly bc my clowns host a filter overflow so its hard to feed them without the food getting sucked up. But I too find I have to turn off my flow to feed my corals. It definitely takes a little more time.
Hosting the overflow box damm mine just swim around everywhere at the moment.