A hole! Lining -- such as PVC: A pump -- which keeps the water moving. If you leave a pond stagnant, fish will die; Plants such as water lilies which you will have to find on your own as they are not available in nurseries; Fish -- just ask your pet store what varieties of fish would do best in your pond. Many people have tropical Koi's and goldfish; and Money, although the cost of the pond depends on the level of your ambition and your resourcefulness.

Vernon Douglas used all recyclable items to build his pond except for the PVC liner, meaning his construction was very inexpensive. The Bermuda stone he used for the outside of the pond was found in the bushes.

Anne Powell turned her pool into a pond. She found the water lilies and only had to spend money on fish, turtles and food.