Kusuri Filter Starter Boost Pink is a simple home brew, which after 5-7 days will be ready to re-start and boost nitrogen cycle in your pond. Health and Safety: Store in original container. Store between 5oC and 30oC. Keep out of the reach of children. Always wear protective gloves and goggles when handling this product. Use within 12 months of opening. Filter Starter Boost(pink) 500ml size for ponds up to 5,000 gallons 1 litre size for ponds up to 10,000 gallons Dose Rate: 100mls of liquid and approximately 1g of freeze dried bacteria per 1000 gallons of pond water (attached to the side of bottle).