JBL Manado is a natural substrate which filters and enhances plant growth. The natural pore structure of JBL Manado promotes effective and fast colonisation by beneficial ground bacteria and cleansing bacteria. This greatly inhibits the growth of unwanted algae right from the start, reducing the work-load on the filter and ensuring crystal-clear water. JBL Manado, with ist porous structure, promotes strong root growth and is perfect for successful plant care. A combination of JBL ProFlora AquaBasis plus as long-term nutrient substrate with JBL Manado as a covering layer guarentees luxuriant plant growth. JBL Manado is capable of storing excess nutrients, rather like a battery, and releasing them again when they are needed. JBL Manado is neutral in water, releasing neither unwanted pollutants no hardeners into the aquarium water. The granulate grains are rounded and gentle on the sensitive barbels of ground-dwelling fish.JBL Manado+ optimal plant care through porous structure and nutrie