Say goodbye to string algae with the Aquascape IonGen System G2! Ideal for use in ponds, Pondless® Waterfalls, and other decorative water features, the IonGen effectively kills algae without the use of traditional liquid chemicals. The system helps to control algae growth throughout the entire system (up to 25,000 gallons) by using a microprocessor that sends a signal to its ion-producing probe. The Aquascape IonGen System G2 is compatible with water containing fish and plants and typically costs less than $1 per month in electric costs. Its simple-to-install, energy-efficient design makes the IonGen a perfect choice for the discriminating pond owner or professional.