BREAK DOWN UGLY DEBRIS! Uses Oxygen power to break down unsightly debris. Especially helpful on streams and waterfalls. Deep cleans planters and rocks. Oxidizes and Detoxifies. Helps to prevent pond odors. Dosage varies depending on amount of debris. Safely, yet immediately breaks down accumulated debris. Use Weekly to Eliminate Stressful Pond Draining. This product is NOT temperature sensitive, but it does work best in warmer weather. To maintain a continued, proper, ecosystem in your pond, always add MICROBE-LIFT PL or any bacteria/enzymatic treatment, 48 hours after using MICROBE-LIFT OPC. As with any water clarifying product, FOLLOW ALL PRODUCT DIRECTIONS!