Unlike other nutrient substrates JBL Manado does not lower the water hardness. Instead JBL Manado is neutral towards the water and does not release harmful substances into the water.

The unique structure encourages the growth of the plant’s roots. A highly porose surface provides an ideal surrounding for the settlement of filter bacteria.

Prevents algae growth as it absorbs excess fertilizer out of the water. The natural colour of fired clay results goes well together with the different greenish and reddish colours of the water plants.

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.