The Filhome Glowing Fish Tank Decorations Plants is a great way to add life to your fish tank. These plants are made from silicone that is odorless and soft, making them perfect for both fresh and salt water environments. The base of the plants is made from resin, making them stable in the fish tank. The plants come in a set of four and can glow in the dark under various lights. They are also easy to maintain, as they don’t require any special nutrients or CO2.