A quality planted aquarium substrate provides the foundation for healthy plant growth.Ultum Nature Systems Controsoil is a natural blend of soil and volcanic ash. Setting it apart from other substrates, Controsoil does not contain high nutrient levels that can cause spikes in ammonia levels. It primarily focuses on impurity absorption and providing balance from the start. This approach makes UNS Controsoil a great choice for all skill levels and allows anyone to create a beautiful aquarium.Controsoil is available in various granule sizes and colors to accommodate user preference and aquatic plant choice.Desgined for planted aquariums and aquascaping, Controsoil by Ultum Nature Systems is a natural substrate blended for freshwater aquariums and terrariums, Controsoil is safe for fish/invertabrates/reptiles. Controsoil can be used alone or in combination, layered to create different scapes. The Normal size granule is great for larger scale aquariums and aquatic plants with thicker roots The Fine size granule is Ideal for shorter root aquatic plants such as foreground plants The Extra Fine granule is Great for top-offs and nano tanks
