The pond as I said is covered in duckweed. No submerged aquatic vegetation at all except for some eel grass I just planted a couple weeks ago. A little FA here and there, but nothing substantial. Since I have no predatory fish in the pond right now I think I am gonna cross my fingers and hope the duckweed doesn't cause a DO crash and kill all the forage fish off. Next year if the duckweed blows up again, I'll nip it in the butt early as I add the RES...