Vallisneria australis (gigantea) from the family Hydrocharitaceae originates from Asia and can grow to a height 50 cm - 100 cm. Vallisneria species are easy, undemanding plants to grow. In the majority of aquariums the leaves of Vallisneria australis (gigantea) growth to such a length they sit on the water surface. The robust and sturdy leaves of Vallisneria australis (gigantea) are normally not eaten by herbivorous fish as they are so tough. Propagation is possible and easy by removing the runners and replanting in a suitable substrate. For best results and to promote growth ensure a nutrient rich substrate.