Derek Broughton wrote:
In the first place, I've seen arguments that you can't get any real
stratification in a small pond - I can't say, as I've never tried measuring
the temperature at different depths. Beyond that, I don't see
stratification as any kind of risk. When it's 95F outside, and you've got
60F well water coming into the pond, I bet you see your koi congregating
whereever the cold water comes in - whether that's at the surface or at the
lowest point.

No Koi (unless they are there as bait for the other fish). Threadfin
minnows, perch, and just enough bass to keep the perch from over
populating. Oh, and ducks & geese.


I'm more concerned with O2 levels than I am temperature.
Question: it is my understanding that the O2 levels would be lower at
the bottom, where the temp is lower, right? If I have the well water
coming in at the shallow end (or anywhere), would that cause enough of a
current to keep the O2 levels mixed and consistant throughout?



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