All plants require water to grow and java moss is no exception. Well-circulated water in an aquarium is extremely beneficial. What’s more, java moss is known to thrive in circulating water currents. Java moss is so well suited for moving water that some aquarium owners have been known to grow their java moss outside the tank, in small, fast moving creeks or waterways in order to get the plant in good working order and only then transplanting it into the tank. One word of warning when it comes to moving water and java moss though—the mixture of moving water and small java moss elements have been known to clog up anaquarium’s filter. Strands of the plant can become loose and plug up apower filter, slowing the filtration process and, in the worst of cases, damaging your equipment. Remember to keep a very regimented cleaning schedule that includes weekly vacuuming in order to move out uneaten food, plant particles, and fish waste, all of which can clog your filter and inhibit java moss growth.