Tropica 1-2 Grow Spirodela polyrrhiza (giant duckweed)
Tropica 1-2 Grow Spirodela polyrrhiza The Greater duckweed, Spirodela polyrhiza, is a floating plant found on all continents except Antarctica. It grows in stagnant to slow-flowing, nutrient-rich, shaded waters and forms a closed cover with other duckweed species. It requires a good supply of nutrients and moderate light intensity. The...
