Tropica Spirodela polyrrhiza 1-2-Grow!

Spirodela polyrrhiza, the giant duckweed, is a floating plant from temperate regions worldwide with small round leaves, several times larger than common duckweed. It grows fast at the surface, taking up nutrients and providing valuable shade and cover for small fish and shrimp. In autumn it produces overwintering turions that sink to the bottom. Simply place it on the water surface.

Care requirements: Difficulty: Easy (per Tropica). Light demand: Medium. CO2 demand: Low; grows well without added CO2. Growth rate: Fast. Placement: Floating surface plant. Height: spreads across the surface. Aquarium plant from tissue culture in closed cup.