Hey guys just gonna offer an update, and share a few observations.
I was walking around the pond when I saw a single fish dead in the water. It was a RES. It was 4in and weighed 21 grams dead. It had a small hole in its side (maybe cause of death) but otherwise looked very healthy. It even had a small "helmet" head forming. I stocked some RES in Jan but they were 1-3in. I highly doubt that a RES would have washed in from someone elses pond. So in ~2 months in cold water whats the odds he grew 1 inch or more and put on 16 grams weight? Then the next question is what killed him? obesity!!?
Next I went up into the backwater of the pond and noticed some minnow swimming around, hoping they were small CNBG I netted some and they were gambusia. I dont mind them, but didnt stock them.
Finally I know it is still cold, but my pond is very clear. It has 3-4ft visibility is some spots from the shore. Should this worry me? Its not even a year old, and never had a summer so maybe it will green up soon. It does have a slight bit of some kind of algae growing all around, some of the algae looks diff than others, maybe have more than one type.