Aquaneat Pond Air Stone 2 Inch, Long Lasting Aerator Oxygen Diffuser, Air Pump Accessories For Aquarium, Fish Tank, Hydroponics, Ponds And Dwc Reservoirs 2 Pack

Makes Lots of Bubbles
Aquarium air stones moderate in size and outputs a large steady stream of tiny bubbles, no leaks, add enough oxygen to your fish, and also make your fish tank more beautiful.
Air stones extend the life of your nutrient solution, help keep roots healthy, and promote exceptional growth. This stone is a must have for your aquariums.
Specifications
1. Color: Gray
2. Material: Silicon carbide, plastic
3. Suitable occasion: fish tank, aquarium, hydroponics and so on
4. Size: approx. 2' D (5mm)
5. Each Weight: 117g/4.1oz
Package Included
2 pieces of gray ball shape air stones
Notes
Please soak the air stone in water for about 30 minutes before first use.
If the air stone doesn't have bubbles in one part, please change the pump of higher power. After a long-term usage, please clean it if bubbles lessen.