Check the listing for details. Air Stone Disc High-Efficiency Oxygen Diffuser Fish Tank Air Pump. Condition: New. Listed at 6.99 USD. Features:Enhance the oxygen levels in your fish tank bubblers or hydroponic setup with our Air Stone Disc. This innovative diffuser ensures optimal oxygen diffusion, creating a good environment for your aquatic plants and fish without causing excessive disturbance.Take control of the bubble size to customize aeration levels based on your specific needs. Our air stone for aquarium fish tank allows you to fine-tune the bubbles, providing flexibility in oxygenation and ensuring a balanced ecosystem for your aquatic inhabitants.Crafted from premium materials, our air stone boasts a robust design that guarantees long-lasting durability. Built to withstand regular use, this diffuser offers reliable performance over time, making it a practical and efficient solution for your aquarium or hydroponics system.