Nuanchu 24 Pack 4x2 Inch Air Stones for Aquarium, Cylinder Bubble Diffuser Oxygen Aerator Stones, Sintered Mineral Airstones for Fish Tank, Pond, Hydroponics Dwc Reservoir, Buckets

Features

• Efficient 360 Bubble Diffusion: cylindrical design releases dense, uniform tiny bubbles from all surfaces, maximizing water-gas contact area to boost dissolved oxygen levels; Ideal for fish tanks, ponds, hydroponic systems, and DWC reservoirs
• High-temp Sintered Mineral Material: crafted from high-purity mineral material via high-temperature sintering, non-toxic, odorless, and safe for both freshwater and saltwater; Resistant to acid, alkali, and corrosion, ensuring long-term durability
• Stable Weighted Anti-floating Structure: dense mineral body provides sufficient weight to anchor firmly at the tank bottom without floating or tilting, maintaining consistent aeration performance even with strong water flow
• Universal Compatibility Easy Installation: standard 4mm air tube connector fits most aquarium air pumps and ozone pumps; Simply soak in water for 2-3 hours before first use to saturate pores, then connect to your air supply and place in the tank
• Clog-resistant Low Maintenance: fine porous structure prevents clogging and ensures steady bubble output; When buildup occurs, gently clean with a soft brush to restore full performance, reducing the need for frequent replacements