This mineral ball is a great holder for planting moss to DIY moss ball. At the same time, it can be the bucephalandra . It will nitrify bacteria, release multiple mineral and microelement that is good to fish and shrimp. Clear plastic ball cooperate with moss ball or bucephalandra makes it to be the perfect decoration. If you put a filter into the tank, it also has the function of water purification. Perfect for use in fish tank, shrimp tank and aquarium.