Uniclife Aquarium Imitative Rainbow Sea Urchin Ball Artificial Silicone Ornament with Glowing Effect for Fish Tank Landscape Decoration.

2. 3 Inch Artificial Sea Urchin Décor Made of reliable silicon material, the imitative rainbow sea urchin is an ideal choice to enliven your aquatic lives and better decorate your fish tank. Sitting stably in the tank, it creates a realistic and vibrant living environment for your fish.