Superfish Crystal Clear is biological filter media, which will give you crystal clear and healthy water and reduces algae.
This unique filter media is a combination of activated carbon and zeolite. It removes all colouration and ammonia from the aquarium water, this helps to prevent Nitrates and Phosphates.
Media bag included.
1000ml of Superfish Crystal Clear will treat a 300 litre aquarium, for best results the media should be replaced monthly.