Pond Lake Management Picture Gallery Algae & Weed Identification Identify the Weeds and Algae in your Pond or Lake Identify Algae & Weeds Aeration Installation and Maintenance With an aerator unit, the air is pushed through diffuser plates positioned at the bottom of the pond. As the air bubbles rise, oxygenated water from the surface moves to the bottom, creating a healthy aerobic pond ecosystem. Aeration Installation