Pond Boss Forums GENERAL QUESTIONS Water chemistry Oily, Brown, Rusty colored film. Please help!!

Well my overall goal for the pond now is to stock it well for bass fishing. That's all I really do. Pond beauty is another goal. Eventually I may end up adding a water fountain or something along those lines. When I first bought the property 3 years ago the filamentous algae around the sides was well out of control. Luckily I've never had any problems with duckweed or watermeal. After putting a few grass carp in, and using blue dye for a year it's mostly under control, except for in the middle of summer when the algae will pop up for a month or two. I've considered dredging out the sides since the pond is so shallow. I thought maybe that would help with the depth and the algae around the shores.