During spring and summer months, ponds develop a thermocline. The thermocline occurs at varying depths where there is a rapid change in temperatures between the surface and bottom zones. As this stratification occurs, areas below the thermocline hold less oxygen and are inhabitable to fish. If a sudden temperature change occurs, you may see a “turnover” that quickly moves stagnant bottom water to the surface. Such events can cause catastrophic fish kills. Investment in an aeration system may limit thermoclines and greatly improve water quality throughout the water column. Contact us for a quote to revitalize your pond.