Pond Ideas?

Hi All,

We just closed on our new six acres yesterday, which came with this pond. After dealing with all the overgrowth and blackberries, I'd ideally like to make this pond self-sustaining and beautiful. The ground around it seems solid (prebious owners had goats and pigs over here). I plan to put my duck houses nearby and like the idea of allowing them access – ideally once I figure out how to aerate/circulate the water to avoid mosquitoes and the like. Looking for recommendations on what you guys might do? Should I add in multiple levels and a pump? Rocks and native plants at the borders? Is encouraging native species (frogs, fish, beavers, etc) a good idea? This is my first pond, so any ideas would be greatly appreciated?