Pond and Lake Floating Fountains Pond fountains offer a fantastic visual experience with their mesmerizing displays of water flowing up and out of the middle of lakes, ponds, and other bodies of water. Beyond that obvious beauty, however, there are also hidden benefits associated with floating pond fountains that make them even more attractive. For one thing, the pond fountain float can help promote a healthier environment for the fish and plants in the area. The oxygenated water will nourish beneficial bacteria, which filter out pollutants and decompose bottom much faster, thus reducing harmful algal blooms by decreasing ammonia levels and creating a healthier aquatic habitat.