I sure like the different ideas, something weird is up with the pond, that's for sure. I know there were no BG or RES originally, something would have nibbled a baited worm, right? My stinkin records are at work (ahhahaha), but I stocked 100 of each at 1-2", the largest BG caught go approx. 4-5" bg, RES maybe 6" max. RES are definitely larger/stockier. I also catch little ones at 2-3"

Like ewest says, there is good visibility indicating a poor bloom/quality, but there are fish everywhere indicating good reproduction.

I have both a BG & LMB RW calculator, I will take a few measurements next time out..."if" I can find my scale in the barn, it's so cluttered with the move, life is fun !