Say goodbye to string algae with the Aquascpe IonGen G2! Ideal for use in ponds, Pondless Waterfalls, and other decorative water features, the IonGen G2 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 the microporcessor that sends a signal to its ion-producing probe. The Aquascape IonGen System G2 is compatable 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 System G2 a perfect choice for the discriminating pond owner or professional.