Limnobium laevigatum

Limnobium laevigatum is native to South American freshwater bodies from Mexico to Argentina, where it forms dense floating mats in warm, still waterways. In the aquarium it is prized for its prolific, feathery white root mass that hangs well below the surface, creating a refuge for fry and a feeding ground for shrimp and small fish browsing for microorganisms. It is one of the most efficient nutrient-removing floating plants available, making it particularly valuable in heavily stocked community tanks.