Choosing the right depth for your pond depends on a few factors, one of the most important being city laws and regulations. Check to ensure you’re following the right guidelines and have any necessary permits. Pond water depth is a more crucial decision when you add fish or plants. If you are creating a water feature like a fountain, choose a water depth capable of supporting the flow and function.
For a more natural and pleasing pond, vary the depth of different areas. Shallower areas can support plants, while the deeper portions provide good space for fish. A good pond depth for fish is typically around 3- to 4-feet. 2-feet may be adequate in some climates, but cooler temperatures need a deeper pond, which can be supported by a pond heater in the winter.