For large aquariums and advanced aquascaping, Oceanmax Aquarium Plant Substrate Soil in a 9kg bag offers essential nutrients in every grain. The 1-2mm fine grain size stabilizes plant roots and encourages lush, long-lasting plant health in freshwater tanks. This high-quality substrate naturally supports plant nutrition, keeps water clear, and creates an ideal, low-maintenance environment for all live aquarium plants. Select Oceanmax’s nutrient-rich substrate for big aquascaping projects or heavily planted aquariums and provide your plants with the foundation they need to flourish.