Join Date: Oct 2012
Location: Massachusetts, USA
Found the answer to my question:
"Reproduction of this plant is done by new plants growing at the tip of the mother plant. After a while, the new plants will develop roots and as they grow bigger, they separate from their mother to float at the surface of the tank. In the wild, new born Java Fern anchor itself to a piece of substrate while being transported with the water current of the streams. In aquariums, hobbyists simply attach it themselves to a new piece of substrate. Cuttings can be also done by separating the rhizome."
I guess I need to learn to google better