Ceratopteris thalictroides commonly known as Sumatra Fern; Oriental water fern, Water sprite are fast growing plants originating from slow moving waters in tropical regions. This is a very hardy plant that will adapt to most water conditions and due to it's fast growth, the perfect plant for filling in any extra space in the aquarium. This plant is very easy to grow and can be grown either planted in the substrate or left floating. Older plants will turn brown and new plants will grow on the older ones, they can be taken off and planted in the substrate. Cuttings from this plant can also be planted or left floating. Can be grown with both sand and gravel as the substrate. This is a tall (growing up to 60 cm or more) plant best suited for tall aquariums and must be trimmed often to keep tidy.This plant doesn't require much light to grow but grows faster with more light offered. Other names for the plant include water sprite and indian fern Pics: http://www.plantgeek.net/plantguide_search.php?search=Ceratopteris+thalictroides&type=Search This is my first time writing a plant profile so what are your opinions? Feel free to point out any mistakes I might have made or share extra information.