Add 50ml of CrystalWater per 1,000 litres (220 gallons) of pond water. Use the dosing cap provided. For even distribution, mix the required amount in a watering can full of water, and pour over pond surface. Not suitable for use in very soft water (carbonate hardness below 2?dH). If soft water conditions are likely (e.g. in soft water regions, following periods of heavy rainfall, use of rainwater in pond etc), please check carbonate hardness before use. Shake well before use always read instuctions carefully