King British Filter Aid

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King British Filter Aid+ is a rich-source of friendly-microbes that will help you maintain better water quality. A weekly addition to your aquarium water will reduce harmful ammonia & nitrite, making the water safer for your fish. Regular use improves the development of the biological filter for clean, clear water. For use in coldwater, tropical and marine aquariums.


100ml – treats up to 900 litres

250ml – treats up to 2,250 litres

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