King British Filter Aid+ (formerly known as Safe Water)
Carefully calculate the volume to be treated making adequate allowance for the displacement of water by gravel, rocks and equipment. Invert bottle gently to mix before use. Add 1 capful (4ml) of Filter Aid+ for every 36 litres (8 gallons) of water. When starting a new aquarium or when using in a marine aquarium, use a double dose.
Repeat treatment once a week, after carrying out water changes, after using fish medicines, and when adding new fish.
Storage: Do not store above 25°C. Warnings: Do not exceed the stated dose. Store the bottle in its carton. Safe and easy to use.