Pond is 3/4 of a acre, the depth varys from 3 in the shallows to about 8 with most of the place at 6 ft. Its a spring fed pond. I would estimate about 5 to 8 gal a miniute. I havent noticed if there eating, the pond had woke up so there is lots of fish feeding and its hard to tell if the trout are eating. I dont see any dead ones so they must be OK. I dont expect them to summer over but if they do great.