You are right about the FA control and aeration. I was thinking further ahead in that some algaecides reduce DO and that some sort of aeration was or would be desired if you use chemicals to combat algae. With very shallow waters, I'd be concerned about wiping out the fish in the stream with the use of chemicals that covers both the 1/2 acre pond and the stream/ponds. But if there is a better way, I'm all ears.
