High Quality Material: Simulated silicone jellyfish, made of food grade silicone, non-hazardous keeping the softness of the tentacles so that they can follow the flow of water and also ensure longevity and durability of the product. Suction cup design: The silicone suction cup design makes your aquascape more flexible and allows you to adjust the height of the jellyfish according to your tank size, which makes the design more humane. > Luminous Effect: The luminous jellyfish has different color effects under different color lights, and the shape is close to the real jellyfish, as if it is wandering in the depths of the sea. Applicable scene: This jellyfish set can be used in any aquarium or fish tank landscaping, because it is made of safe materials, so it does not harm fish.< /p> Note: It needs to cooperate with aquarium light. The glowing effect only occurs under actinic lighting, blue or purple light is recommended.