Yes, aerating a pond can help limit algae growth. Aeration increases oxygen levels in the water, which helps reduce nutrients that feed algae. Aeration also circulates water, which helps prevent algae spores from getting sunlight and establishing themselves. How aeration helps Reduces nutrients: Aeration supports aerobic bacteria that reduce nutrients that feed algae. Disrupts algae spores: Aeration circulates water, which prevents algae spores from getting sunlight. Starves algae: The extra oxygen prevents algae from feeding on phosphorus. Improves water quality: Aeration reduces muck and excess nutrients, which improves water clarity.