An ecosystem can be defined as plants and animals interacting with one another and sharing available resources in a defined area.

An ecosystem encompasses all the parts of this environment, including the plants and animals, and non-living components, such as water, air, and the sun's energy.

Ponds are ecosystems, in that they play host to a total interrelationship
of all organisms in the environment - birds, fish, frogs, plants, and many
microscopic organisms like diatoms (pictured, right).

A pond ecosystem can be likened to a pyramid. In the pond ecosystem, water is the base of the pyramid. Everything found above the base is completely dependent, either directly or indirectly, on water.

The art of water gardening is to work in harmony with Mother Nature by creating and maintaining a balanced environment.

When the pH balance of the pool is right, the water will be clear of algae and the plants and other inhabitants will look healthy and happy.

Your pond is a small ecosystem, so it must be balanced to be healthy and look good. The right combination of plants, fish, snails, and bacteria will result in a healthy ecosystem.