Carousel Spinning Aquarium Ornament. The aquarium ornament is a charming carousel design that spins with the help of a water pump. This decorative piece adds a playful and dynamic element to your fish tank, creating a visually engaging environment for your aquatic pets. It's a delightful addition that can bring a touch of whimsy to your underwater world. Dimensions: Approx. 8.5 cm (3.4") base Approx. 15 cm (5.9") height Water pump with adaptor and short hose attachment included.