I wish there was a “good” system out there for less than $3000. This system might work with the addition of batteries, solar panels, and power management. Just needs to run at night.
I just can’t justify $7000-$9000 for aeration. I’ve been told though, that poor aeration is worse than no aeration.

9 yr old pond, 1 ac, 15' deep.
RES, YP, GS, FHM (no longer), HBG (going away), SMB, and HSB (only one seen in 5 yrs) Restocked HSB (2020) Have seen one of these.
I think that's about all I should put in my little pond.
Otter attack in 2023