Ceratopteris Thalictroides

Ceratopteris thalictroides is a fern species belonging to the genus Ceratopteris, one of only two genera of the subfamily Parkerioideae of the family Pteridaceae. It grows to 15-30 cm high and 10-20 cm wide. This plant grows fast but the addition of CO2 may be necessary to promote growth. In small, open aquariums, it can grow out of the tank and form beautiful surface leaves.