Assuming I am looking at low oxygen, what can I do about it (now, or in the future)?
The pond is only 4 years old with no inlet or outlet, so there isn't that much muck or debris breaking down. I did have two families of Canadian geese nesting (and pooping) near my pond, but as soon as they were old enough to fly, I was able to get rid of them (couple weeks ago).
Again, with no inlet or outlet, I don't no how I would get any significant toxins introduced.
I have a good vertex aerator with 3 diffusers going 24/7.
Vegetation levels, in my opinion, seems appropriate.
Not sure what to do, other than scoop out a couple more fish each day.
