kathson Mineral Air Stone Bubble 4.7 Inch Ball Shape Diffuser Airstones for Aquarium, Fish Tank, Pump and Hydroponics(2 Pack)
?This air stones made of high quality non-toxic mineral material, which has no effect on the growth of fish and hydroponics, but also promotes it. Round surface and flat bottom make the stone place steady. Low oxygen consumption & high fusion rate.
?An ideal way to add oxygen and lower CO? levels to your hydroponic, circulation system, fish tank and aquarium. Soaking the air stone in water for 3 hours before use. Brush the stone surface every 2 weeks, you will find that he can accompany you for a long time and save a lot of money.
?A great way to properly aerate a home aquarium. It creates a lot of tiny oxygen bubbles that bring vitality to fish and hydroponic plants, enhance vital hydroponic system aeration & water movement, versatile air stone for decorative & functional air bubbles.
?Fits for 3/16" / 4 mm inner diameter tube. Measures 4.7" in Diameter by 2.5" Height. Jetting Volume: 20 L/min, Recommended Air Pump Power: >4 W.
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