The WIO Dark Fine Artist Wetland is a fine-grained clay substrate for aquariums. Its main features include:

• Dark shade that creates contrast with plants, roots, and stones.
• Variety of grain sizes and shapes for a natural appearance.
• Weight: 2.00 kg
• Granulometry: 0.1–2 mm
• Type: sand
• Material: clay substrate
• Safety: safe for aquatic organisms
• Duration: over 10 years
• Metal content: nitrogen, phosphorus, potassium, iron, calcium, magnesium, sodium, zinc, boron, copper, nickel, chromium, selenium, manganese, molybdenum, cobalt, fluorine, iodine, vanadium, and other essential elements.