MuchBuy Glowing Artificial Jellyfish Ornament for Aquarium Fish Tank Material: Soft Silicone and Fluorescent Powder Size(approx): S(Diameter: 5cm, Full Length: 12cm) Incredibly detailed imitation floating jellyfish Ideal decoration for the fish tank and aquariumHarmless to All Fish Simply apply it to the tank wall,the jellyfish is tied by thin invisible line and suction cup