Juwel Phorax is a highly effective filter medium used to break down phosphates in your aquarium. This effectively reduces the growth of algae and can contribute to improved plant growth.
Medium: Suitable for Rio 125, Rio 180, Rio 240, Lido 120 & 200, Vision 180 and Trigon 190.
Large: Suitable for Rio 300 and Vision 260.
Extra Large: Suitable for Rio 400, Vision 450 and Trigon 350.