Java moss is a moss belonging to the Hypnaceae family. Native to Southeast Asia, it is commonly used in freshwater aquariums. It attaches to rocks, roots, and driftwood, and it’s a great plant for beginners to get their hands wet in the aquascaping world.
It is especially popular among aquarists raising fry (baby fish) and tadpoles, to protect them from cannibalistic adults. Java moss can also provide food for the newly formed fry, which can be challenging to feed. Some shrimp like to tear the miniature leaves off it to eat.