
Regular price$15.99
Price from our last catalog update. Final price at checkout.
- 2.3–6 in
- 5 options
- Sized for a garden pond or a large DWC system run by a pump above 20 W.
Shaped like a loaf with a flat base, the 6 inch stone weighs 30 ounces and sinks straight down, staying put while it bubbles. It measures 6 by 2 inches and passes 30 L/min, around 476 GPH, so it wants a pump above 20 W on 3/16 or 3/8 inch tubing. Ponds, DWC systems, aquaculture tanks and large aquariums are where it belongs.
Sizes are 2.3, 4 and 6 inches, with the two smaller ones also in 2 packs. Soak it in water for more than three hours before first use, longer than a small stone needs. Leave it out of small tanks: the 6 inch size asks far more air than a nano pump gives, and its footprint takes over the floor of a small aquarium.
Specifications
| Air output | 476 GPH |
|---|---|
| Power | 20 W |
| Sizes | 2.3 in, 4 in, 6 in |
| Options | 5 |







