Pearl weed is an aquatic plant commonly used as a foreground or carpeting plant in planted aquariums. <p>DBT need a fine-grained substrate rich in nutrients and minerals, especially iron.</p><p> live plants produce oxygen, absorb carbon dioxide and ammonia that fish generate.</p><p> Instruction</p> <p>Casting seed on the surface of the substrate. Keep the surface of substrate moist, cover opening to keep moist in. </p><p>2-7 days is enough for sprouting, 15 days finish landscaping. After most seeds sprout fill tank with water. -Ideal temperature between 68F to 86F</P>