When I had my main pond shocked several years ago, we brought up a ton of Yellow Perch; this would have been in 5-8' of water, so maybe Doc's pond is deeper.
My pond averages around 8', but has lots of variation, including a 14' valley. But my suspicion is my YP numbers are very low, so the chances of shocking one up is also very low.
We hope the supplemental stocking will help get them established and reproducing.
