Oxy Pond Cleaner 8 lbThe new Oxy Pond Cleaner by Microbe lift uses Oxygen power to break down unsightly debris and help fight string algae. It is especially noticeable in streams, rocks and waterfalls. Helps to prevent pond odors, oxidizes and detoxifies. Safe for fish and plants. Dosage depends on amount of debris. Heavy Accumulation: 501 1000 gallons 8oz initially, 4oz weekly thereafter 1001 1500 gallons 12 oz initially, 6oz weekly thereafter 1501 2500 gallons 16 oz