Here is my pond, just finished the rocks waterfall and most of the back filling yesterday. the rocks at the base were so heavy they smashed the edge of the pond down about 4", so now he have to dig down and lower the rest down, luckily we raised up the ground 8" before we started.
I am growing some tropical water lilies from seed( it's a lot cheaper than plants), they are just starting to come up I will see if they make it? I have 3 gold fish that are out growing my tank, so they will test it too see if it is safe for more fish. The pond only cost $250 the pump cost the most and you can pick rocks up along the side of the road out here in Kansas, and we built the filter.