Always wondered similar on my established tank.
Have ~3600 gph on the CL, with ~1000gph from the return. As the tank is in the family room, thought having the CL go off for a couple or three hours in the late evening more for noise than anything else. The Dart pump isn't bad, but room would be a little more enjoyable if say wanting to read a book in there after everyone else went to bed. Shouldn't hurt the tank, thinking slack tide.
(Basement sump so nothing from the return pump and the 2-2" Durso really quiet so overflows not a problem)