Heavy organic material: 3 – 16 tablespoons (45 g – 240 g) for every 1000 gallons (3785 L) of pond water. Maintenance dosage: 1 – 5 teaspoons (5 g – 25 g) per 1000 gallons (3785 L) of pond water. Spot treatment: 1 – 5 teaspoons (5 g – 25 g) per affected area. Use weekly
