Java moss or the Vesicularia Dubyana is one of the easiest aquatic mosses available and hardy, aquarium plants around. It belongs to the Hypnaceae family and is native to Southeast Asia. It is very common in moist tropical climates and grows on rocks, riverbanks, and tree trunks. Due to its low requirements regarding water quality and lighting, it is perhaps the most common moss amongst freshwater aquarists. It is commonly used for aquascaping and can produce beautiful results. SHRIMP SAFE.. #Vesicularia_Dubyana Emersed form is available, but it is much easy to grow because has grown like a mat.