deal for the care of plants in freshwater aquariums. Its porous structure encourages rooting. Ideal for fish that bury themselves in sandNutrient store with high iron concentration. Can absorb excess nutrients and release them when needed. The high concentration of iron can be absorbed by plant rootsActivates the substrate flora by stimulating the rapid and effective colonisation of beneficial bacteria. This limits unwanted algae blooms, the filter is less strained and the water becomes crystal clearEnhances the vivid colouring of the fish by its dark brown colour, which accentuates the colours of the fish, providing a harmonious overall appearance together with the green and red tones of the plants.Ready-to-use substrate, should be rinsed under running water before use. Available in various pack sizes