3.2 in Fish Tank Bubbler, Aquarium Air Stone for 5-20 Gallon Tanks

Key features

• Air Pump Not Included, Stainless Steel Nozzle Holds Strong: This disc needs an air pump to make bubbles — pump sold separately. Plastic air inlets can crack when you push tubing on or off. BaoZqua uses stainless steel with a high-hardness shell that lasts.
• Forged Nano Pores for Mist-Like Bubbles: Ordinary stones spit oversized bubbles that pop at the surface. Our nano disc is forged under extreme heat to form dense micro-pores, releasing an even mist of ultra-fine bubbles for higher dissolved oxygen.
• 3 Sizes from Nano to Large Aquariums: The 3.2 Inch disc fits 5-20 gallon tanks, the 4.1 Inch covers 10-40 gallon tanks, and the 5.1 Inch handles 20-75 gallon aquariums, DWC reservoirs, and small ponds. Fits 3/16 Inch tubing and a standard air pump.
• Built for Aquariums Hydroponics and Ponds: Whether you keep a betta, goldfish, axolotl, koi, shrimp, or planted reef tank, this oxygen diffuser delivers steady aeration. It also powers DWC hydroponic buckets, indoor reservoirs, and small ponds.
• Full Kit and Cleaning Care: Each order ships with the main disc, 2m airline hose, 1 check valve, 1 control valve, 3 suction cups, and 1 manual. Air pump not included. White discs may collect algae — a quick vinegar soak restores the misty flow.

Free shipping included. 30-day hassle-free returns.