Pisces Banish Algae Control Balls effectively combat unsightly green water and blanketweed, offering a potent solution for algae-free ponds. This treatment disrupts algae growth at its source, delivering a stunning, clear pond quickly. The simple-to-apply balls release a concentrated biocide that targets algae directly for fast and efficient results. Enjoy a beautiful, crystal-clear pond with this powerful, easy-to-use solution. Simply follow the dosage instructions and add the Banish Algae Control Balls directly to your pond. This convenient method provides long-lasting control over algae, allowing you to spend less time maintaining and more time enjoying your beautiful, crystal-clear pond. How to use: Add 100ml of Algae Control Balls per 450ltrs of pond water. Do not add treatments late at night or when the day is at its hottest. Leave pumps & waterfalls running. Specifications: 500ml treats up to 2250 litres (495 Gallons).