A water quality test would be great. We don't have any "pond shops" nearby though. Do you have any recommendations for where a sample could be sent or what it should be tested for? I think you're right that something in the water happens this time of year and pushes the bluegills out of their normal range. Be nice to get it sampled now while the problem is occurring.
Ewest - I talked to a biologist last year when it happened and they said it was a bacterial infection. The bluegills develop red spots on their bodies, start to loose color on their fins and their mouths and tails start rotting away.
