Soft plastic material made, the artificial jellyfish is safe for all your fish. and odorless, no matter whether you have a freshwater or saltwater tank, our ornaments will never harm your fish. Simply apply the ornament to the tank wall or bottom. The jellyfish is tied by thin invisible line and suction cup. It has glowing effect under actinic lighting. These ornaments capture the beauty and graceful movement of natural jellyfish which are nearly impossible to keep in an aquarium. Feature - - Material: Silicone. - Size: Small one: 5.5 x 18 cm; Medium one: 8 x 20 cm; : 10 cm. - Jellyfish Fish Tank Aquarium Decoration. These ornaments capture the beauty and graceful movement of natural jellyfish which are nearly impossible to keep in an aquarium. - Environmental Protection Artificial Jellyfish Ornament. silicone material is safe for all your fish. and odorless, no matter whether you have a freshwater or saltwater tank, our ornaments will never harm your fish. - Simply apply the ornament to the tank wall or bottom. The jellyfish is tied by thin invisible line and suction cup. It has glowing effect under actinic lighting. - World. It is great hiding place for tropical fish and adds interesting decor to any fish tank. - Artificial Aquatic Plants. Your friends will be when seeing your aquarium and think they are real jellyfish. - It is also great your friends. Package list: 1 x artificial jellyfish