Perfect for plant care in freshwater aquariums, its porous structure promotes root growth. Suitable for digging fish, this nutrient buffer has a high iron content capable of storing and releasing excess nutrients. The high iron content is absorbed by plant roots, activating soil flora by motivating the quick and effective colonization of beneficial ground bacteria. This inhibits the growth of unwanted algae, reducing the workload on the filter and ensuring crystal-clear water. It accentuates the beauty of fish by highlighting their colors with its dark-brown tone, combining with the green and red tones of aquatic plants for a harmonious appearance. Contents: Ready-to-use substrate which needs to be rinsed once in tap water before use. Available in various packaging sizes.