Thanks everyone.
FishinRod, thanks for the good thoughts. I put some water in jars yesterday and so far it looks equally cloudy, so maybe I need a flocculant. That said the prior version of this pond (same location just smaller) had aeration and did eventually clear up, so maybe I shouldn’t jump to add a flocculant too quickly and should instead wait a few weeks and see what happens. What do you think?
Esshup I was considering buying a Hanna, something like this:
https://www.hannainst.com/hi9146-portable-dissolved-oxygen-meter.html You raise a good point that it could be too late by the time I notice.
Journeyman it is five 2 disk stations, spread out around the pond. You have a good point about the leaves. We do get quite a bit. Our hope is most of these leaves will get sucked into the stream before they sink to the bottom, but it is an untested theory so far as this is our first fall with the stream running. We should learn more soon though.