Cool video @papa-pepper, looked like some of the minnows got wise and stayed near the center where the ducks could reach them over the side of the pool, but I'm sure they all got et before too long. Well done.
When I was small and our river was still healthy, we'd use "seine nets" fine nets between two poles.
We'd wade out waist deep, push the poles to the bottom and walk/drag toward the bank. and we invariably had dozens of small fry, which were also used for bait.