Although the book cover gives the title as Twenty Thousand Leagues Under the Sea, the title page titles the book Twenty Thousand Leagues Under the Seas; Or, The Marvelous and Exciting Adventures of Pierre Arronax, Conseil His Servant, and Ned Land a Canadian Harpooner.
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 ânaturalâ here refers to the pond filtration system, not the esthetic look of the pond. Iâll 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.
To determine the size of your fish pond filter you will need to know how many gallons of water your pond holds. For those with preformed ponds, this can be easy as it will state right on the unit. For those who have created their pond with a pond liner, you will have to do a little math.ou will need electricity near the pond to run the pump and the optional UV (ultraviolet clarifier or sterilizer). The first kind of pond filter is a submersible filter. This can be located inside the pond. On one end of it (or even within the filtering unit) is the pump with a tubing connected to its discharge side.