ewest:
I'll take a reading this afternoon. Yes, I normally have a bloom. eyeballing it I'd say there's 3'+ visibility.
Cecil:
Yup, there's a good amount of FA in the pond. To keep a bloom going last year I needed to fertilize, but this year I am feeding more. This year is drier than last year so I might have less groundwater flow thru the pond, helping it to retain nutrients.