This is one of your home land treasures which some of my friends in Taiwan have been seeking for. Therefore it should be added into your local aquarium plants list, and you should be proud that you have a special species of the genus.
I've already collected almost all the species(about 4to6 species, excluding the varieties and sub-species) of Ceratopteris except C. richardii. Could anyone tell me how to get it? This species is said to be frequently used in your botanic institutes of college, while I don't know how to get it by this way.