Enhance your aquatic environment with our premium Bubble Stone, crafted from durable sand stone combined with a special stainless steel connector for long-lasting use and easy maintenance. Designed with a unique stone shape and frosted surface, this bubble stone not only adds a natural aesthetic to your aquarium but also promotes a healthier habitat by ensuring optimal air permeability and oxygen diffusion for fish survival and breeding. Key Features: · Durable Sand Stone Material: Made from high-quality sand stone, this bubble stone is sturdy, reusable, and easy to clean, ensuring long-term performance. · Special Stainless Steel Connector: Built with a corrosion-resistant stainless steel connector that guarantees durability and reliable connection to air tubes. · High-Temperature Firing Process: Manufactured with a high-temperature firing method to enhance air permeability, facilitating effective oxygen distribution in your aquarium. · Exquisite Stone Shape Design: Features a natural stone shape with a frosted surface that is delicate, smooth, and visually appealing, blending seamlessly into any aquatic setup. · Large and Even Air Output: Delivers a substantial volume of air evenly across the surface to significantly increase oxygen content in the water, promoting better fish health and breeding conditions. Specifications: · Material: Sand Stone + Stainless Steel · Available Sizes and Compatible Air Tubes:   - 6 cm Diameter: Connects to 4mm air tube   - 8 cm Diameter: Connects to 4mm air tube   - 10 cm Diameter: Connects to 4mm or 8mm air tube   - 12 cm Diameter: Connects to 4mm or 8mm air tube   - 15 cm Diameter: Connects to 4mm or 8mm air tube   - 20 cm Diameter: Connects to 8mm air tube Package Includes: · 1 x Bubble Stone This Bubble Stone is the perfect accessory for aquarium enthusiasts seeking to improve oxygenation and water circulation while adding a natural and elegant touch to their aquatic environment. Its robust construction and efficient oxygen output make it an essential component for maintaining healthy fish and supporting aquatic life growth.