This beautiful and life-like artificial jellyfish is great for decorating your aquarium! With a suction cup included, you can attach it to the base or sides of any aquarium and it floats and moves in the water's current. Available in multiple, vibrant colors which all GLOW under blue or black light. It's safe for marine or freshwater aquariums, and made of non-toxic silicone. Rinse with water prior to placing in aquarium; Do NOT use soap. Some setup required: Remove the top tip of suction base. Place clear string from jellyfish into the top of suction base until you have your desired jellyfish length. Place tip back into the top suction base to hold the string in place. Ornament is now ready to place in tank. SIZE: Approximately 2" diameter and 6" height.