fusQuanto wrote:

what is a bubble counter and what is its purpose?

"George Pontis" wrote:
Far Thunder wrote:

...

A diffuser would be the deluxe solution, especially if you already
have external plumbing. It has the advantages of being completely
hidden and capable of high infusion rates.



A bubble counter is a clear vessel, often a plastic cylinder, filled
with a liquid through which your CO2 bubbles up before entering the
tubing that will carry it to the diffuser. Most CO2 regulator
assemblies for an aquarium have one after the needle valve. It is
useful to get an quick estimate of your CO2 flow rate since an aquarium
takes a long time to reach equilibrium.

For a pictu

http://www.automatedaquariums.com/mw_ma957.htm
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