I think it might be as well. If you feel the texture of the moss, Taxiphyllum spp. are very soft and "silky", whilst the Vesicularia spp. are tougher and more "gritty". <List of Aquatic Moss. How to grow Aquatic Moss. Info on Java Moss, Christmas Moss, Taiwan Moss, Peacock Moss, Stringy Moss>.I'm thinking possibly it may be peacock moss