You are correct. But I don't know how it got there. I only have stocked it with trout.
Bdavis
3" a year nice. Before the dig I caught a 9" I hope the fish kill was minimal but the results of the dig will be huge.
Thanks for the info

I bought the windmill as a kit from Tractor Supply. It took about 6 hour to assemble. I assembled it in my garage and move it down to the pond with the tractor. The ground anchor kit include consist of driving a 2" galvanize pipe in the ground and U-bolt to the legs. It comes with a 100' of air hose and a 8" air stone.
The air hose that comes with it floats so I bought weighted hose. You can also get a air powered water pump to fill a water tank. Cool thing to have in the yard.