I am doing the same thing only with a 1/10 acre pond and a 500sqft upper pond/stream. The pump I am looking at is the Superfalls KJ110 115v 1/4 HP, 183 GPM Pump operating at 3.7 Amps from
Stoney Creek . At 3.7 amps it should be comparable with a 1/4 hp air pump in electricity usage.
My pond will be deeper (15'-20') than yours and I am looking into several Hypolimnetic Aeration options to keep the bottom cool and aerated. The goal is to keep trout in the pond without putting in a well to keep the water the right temp.
