Jun Master Soil Next Black – Premium Active Substrate for Planted Aquariums

Key Features:

• Japanese natural substrate: With 4.0–5.0 mm granule size
• Rich in: Fulvic and humic acids as well as essential minerals
• Promotes: Root growth, nutrient absorption, and water stability
• Reduces and stabilizes: pH, GH, and KH levels – ideal for sensitive species
• High porosity: Creates a perfect environment for beneficial bacteria
• No pre-rinsing required: Extremely durable and shape-retaining

Product Description:

Jun Master Soil Next is a premium substrate designed for advanced planted aquariums. This active bottom layer, with a granule size of 4.0–5.0 mm, is made from repeatedly sintered natural soil and delivers essential nutrients, fulvic and humic acids, and trace elements directly to the roots of aquatic plants.

Its porous structure promotes the colonization of nitrifying bacteria and prevents anaerobic zones. The substrate reliably lowers and stabilizes pH, GH, and KH values, creating soft, stable water—ideal for species such as discus, angelfish, otocinclus, and Caridina shrimp. Unlike conventional substrates, Master Soil clarifies the water and neutralizes discoloration caused by driftwood or decorations.

It is ready to use straight out of the bag—no rinsing or layering needed—and offers long-lasting performance with excellent structural integrity. A top choice for experienced aquarists.

Please note: Jun Master Soil Next significantly lowers KH. pH may also drop to below 6.5.

Available in:

• 3L
• 8L