Airstone

An airstone, also called an aquarium bubbler, is a piece of aquarium furniture, traditionally a piece of limewood or porous stone, whose purpose is to gradually diffuse air into the tank, eliminating the noise and large bubbles of conventional air filtration systems, and providing other benefits to the health of the fish. "Airstone" is also a brand name stone or brick veneer used by homebuilders. Airstones are sold in a very wide variety of shapes, sizes, and levels of coarseness – from extremely rough, producing larger (though still typically unnoticeable) bubbles and letting in more oxygen – to very fine, producing minuscule bubbles. Airstones are increasingly being made from bonded glass beads and synthetic products like fiberglass.

There is some controversy as to the efficiency of airstones versus the conventional powerhead system when used in uplift tubes as part of an under-gravel filter.^{[1][citation needed]} Arguments can be made in favor of both systems, and both possess certain advantages and disadvantages. Among aquarists, the choice is very much a matter of personal preference, quite often discussed in internet forums.

Protein skimming

The original method of

Air stone protein skimmers may be constructed as a DIY project from PVC pipes and fittings at low cost [1] [2] Archived 2009-01-23 at the Wayback Machine and with varying degrees of complexity [3].

While this method has been around for many years, many regard it as inefficient for larger systems or systems with large bio-loads.

See also

• Aeration

References

External links

• Information on the airstone controversy

Airstone veneer: *[4]

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