have 3.5 acre pond in east tx. lots of leaves in the fall . pond is 4 to 8 ft. deep . auto feed once daily, do not have an aeration system . this is an old pond but seems ok , have c-cat , bluegill, f-bass, just added crappie & threadfin shad,pond is spring fed most of the time.i have just started fertilizing..all the leaves should i worry about all the leaves ..harvey