More of a fountain than a pond, this water feature would still be classified as a small pond most probably because of its size. Regardless, the fountain can actually serve a purpose for more than just to be a pretty piece of decor.
Along with adding the elements of sound and motion to the garden, this fountain also aereates and circulates the water helping it to keep from becoming stagnant and filled with moss. Along with other maintenance tasks, circulation is very important for ponds, waterfalls, and water features. So, while most of us see this two tiered fountain as just a piece of decor, it also has a purpose in the pond to help keep the garden fresh and safe.