We have not received the results yet. I emailed the company and they said this week but we did not hear back yet.

They treated the B/G algae and that went away, then they treated the duckweed when they took the samples and that went away. Though it just started coming back a couple of days ago.

The pond is part of the yard and our new home sits close by. We are basically having to use the river water almost weekly to keep the pond water level up so low water level doesn't detract from the house. Have to see it to appreciate what I am saying.

Regardless we will constantly be pulling water from the river so anything we do has to work around that fact.

The pond receives lots of wind. It sits on a a bluff facing west over looking a river. The only reason I brought up the aeration is because its really the only thing that has changed. Ever since it was introduced nothing lives in the pond. Maybe something changed with the river but timing wise it would be a heck of a coincidence.