Biopebble, Biopipe+ and Bioflo+ biological filter media are designed for use in Recirculation Aquaculture Systems (RAS). Warden Biomedia's uniquely-designed media provides a large protected surface area for biofilm development and optimal conditions for bacteria culture growth.

RAS are designed to recirculate the water from fish farming tanks after it has been through biological treatment. This reduces water usage compared to traditional fish farming systems where supplementary water is required. This in turn lowers the operating costs and environmental impact of fish farms.

Warden Biomedia guarantees that no halogens or contaminants are present in its products, which are manufactured in a state-of-the-art factory in the UK.