I'll venture a guess at100 lbs a month for a 3/4 acre pond.Maybe a little more,I just dont pay enough attention.Speaking of which,let me go throw 2-3 lbs of food in the pond.Until they settle into rutine,I feed by hand,and throw out according to how thier feeding day by day.

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Some days you get the dog,and some days he gets you.Every dog has his day,and sometimes he has two!