Christmas Moss (Vesicularia montagnei), also known as "Java Moss," is a somewhat rare, but very popular and attractive species of creeping moss for the freshwater aquarium. This is a great plant to keep in any freshwater aquarium, terrarium, or paludarium due to its low lighting requirements and ease of care. It grows into bushy patches that are always a favorite hiding place for shrimp and fish fry. It also provides cultivation areas for tiny live food sources such as infusoria and biofilm. Once established in the aquarium, Christmas Moss fronds appear very bushy and have the appearance of pointy, miniature pine trees.