The Dymax Vortex Fan is an efficient method for controlling water temperature in aquariums, particularly during warmer months. Its built-in clamp allows for secure attachment to most aquarium edges, and the flexible arm allows for customizable airflow. Available in both W-5 and W-8 sizes, the Dymax Vortex Fan utilizes vortex technology and operates quietly and compactly. Additional features include easy installation and the option to connect to an aquarium thermometer for automated temperature control.