how to tell if your pond is man made
A man-made pond made with a pond liner has no soil â so one source of micro-organisms is missing, especially if you keep cleaning the pond liner. Most ponds have few stones and few plants reducing the number of micro-organisms even further.he use of the word ânaturalâ here refers to the pond filtration system, not the esthetic look of the pond. Iâll deal with esthetics in a future post on how to build ponds. In a natural pond the water, soil, plants, and animals all live in harmony. No one comes along to clean the pond or to aerate it.