Power Sand Advance is a successor of Power Sand Special.Power Sand Advance is a nutrient-rich substrate for the bottom floor. This product has more nutrients than POWER SAND BASIC, and on top of BACTER 100 and Clear Super (Both of them reproduce the soil ecosystem by abundant nutrients and the activated microorganisms in the soil, and it helps water plants to grow well for a long period time), it's also blended with BC powder (bamboo charcoal powder), which helps encourage the growth of plants. Please select the right size, S, M, or L according to the depth of the tank. IMPORTANT: *We already cover the shipping fee for this product, please select Free Shipping for all Aqua Soil purchases at check out. NO expedited shipping option will be accepted. We appreciate your kind understanding. Sizes Small - 2 Liters Medium - 6 Liters Large - 6 Liters Features Very rich in nutrients Contains Bacter 100 and Clear Super for the optimal start of your aquascape A sufficient supply of oxygen is vital for aerobic bacteria. Insufficient oxygen prompts the activity of anaerobic bacteria which produce toxic substances such as nitrous acid Organic matter in Power Sand or other bottom fertilizers such as Multi Bottom or Iron Bottom can be absorbed by aquatic plants, only when they are broken down to inorganic matter by bacteria Silt gathers around plant roots and provides a good medium for bacterial colonization. Proper functions of bacteria, through their nitrifying processes, change ammonia to nitrogen compounds which are then consumed by aquatic plants through their roots Works effectively to stimulate the establishment of an association between bacteria and aquatic plants Nutrients contained in Power Sand are slowly dissolved and absorbed by plant roots Usage Article Code Item Volume Depth of water tank - 104-016 Power Sand Advance S 2L 40cm or below (15" or below) - 104-017 Power Sand Advance M 6L 40cm to 60cm (15" to 24") - 104-018 Power Sand Advance L 6L over 60cm (24" or beyond) -
