Definitions
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun A piece of
aquarium furniture , traditionallylimewood orporous stone , whose purpose is todiffuse oxygen gradually into thetank , eliminating the noise and large bubbles of conventional air filtration systems.
Etymologies
from Wiktionary, Creative Commons Attribution/Share-Alike License
air + stone
Support
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Examples
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The airstone is connected to an inexpensive air pump like they use outside of fish tanks.
Green Blog Project – Fish with baby methi (fenugreek) leaves « Salt and Pepper. 2006
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I grow mine in water, with nutrients (fertilizer) added and an airstone in the water to oxygenate the roots.
Green Blog Project – Fish with baby methi (fenugreek) leaves « Salt and Pepper. 2006
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* If an airstone is used, be sure it is acid resistant.
Explosives for Fun and Pleasure, Uploaded by Shadow Knight (Has Anarchy Messages Around It) 1987
Comments
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