Pond Boss Forums AQUATIC VEGETATION Balance of plants in the environment Watershield dieoff causing murky water?

Have noticed my pond is getting murkier over last couple weeks. Typically have 2' of visabilty - lately more like 18" or less despite the fact we have had little rain lately. It has watershield growing in all areas 6' and shallower. I see some of the watershield is starting to turn yellow and suspect that it is starting to die off causing the murky water. The fish have not been biting and when hand feeding the bluegill they seem to have moved into deeper water and are not feeding very aggressively. Does anyone else have this going on now? My pond is spring feed enough to keep water level stable but not much of water is going out into spillway area unless it rains.