Long-term use: It can be used in the aquarium for a long time and height is free to adapt. Inoffensive fish: environmentally friendly silicone materials, non-toxic, tasteless, durable. Easy to install: The suction cup is fixed and the line fixed by a small invisible line. Ideal decorative imitation: Extremely detailed, it floats like the real jellyfish. Note: It is necessary to use with the light of the aquarium and the lighting effect will occur under the photochemical light. It is recommended to use blue or purple. Delivery Quantity: 6pcs