Made of resin, this aquarium decoration is eco-friendly, low maintenance, and easy to clean. The castle sculpture creates a lifelike underwater scene. It can be connected to an air pump to produce bubbles, adding visual interest and movement to the tank. Carefully crafted air-bubble decorations feature realistic colors and textures. This detail helps create a more engaging environment for your fish. Flat bottom design allows stable placement on the tank floor. Suitable for small aquatic pets such as bettas, crabs, and guppies. Use scenarios - Betta or small tank: place on the bottom and connect to a gentle air pump to generate soft bubbles that boost interest and activity. - Nano community tank: serves as a focal point and shelter, with bubbles providing dynamic, ongoing movement. - Viewing and maintenance: bubbles add visual appeal during feeding or cleaning, keeping the tank lively while fish explore.