Boyu Round Ceramic Air Stones – 4", 6" & 8"

Boyu Round Ceramic Air Stones – Small Bubbles, Big Difference

An air pump is only half the job. The air stone decides how much of that air actually dissolves into your water. A cheap stone makes big, lazy bubbles that race to the surface and pop. A good ceramic stone breaks the air into a fine curtain of tiny bubbles, with far more surface area, so far more oxygen ends up in the water where roots can use it.

Why Ceramic

• Fine, even bubbles for maximum oxygen transfer
• Heavy and stable: sits flat on the reservoir floor without floating
• Durable: lasts far longer than cheap foam stones

Which Size?

• 4": DWC buckets, small reservoirs and semi-hydro setups
• 6": medium reservoirs
• 8": large reservoirs and tanks

Connect to an air pump with airline tubing (sold separately).

🌿 Rose's Pro-Tip: soak a dirty stone in diluted pH Down or a little Liquid Oxygen between crops. It dissolves the mineral crust that clogs the pores and brings back the fine bubbles.

Black Flag Horticulture Ltd, Coventry.