– Designed to mimic the earthy tones of soil found in natural habitats – Provides a stable base for aquatic plants to grow and thrive – Offers a bio-filtering function that enhances microbial colonization – Provides complete nutrient supply of macro and microelements for plants – Designed for any water depth, including deep public aquariums – Extreme long-term use of +10 years. It doesn’t crumble in the long run