Re: [APD] Air bubbling

[Raj <ggrk at blr_vsnl.net.in>]

>I've found that air bubbling made no difference. But increasing the 
>water surface movement makes a huge difference.

         I have tested this with a dissolved O2 meter. In my 50 gal. 
the DO levels rise from 2-3 to 6 mg/L in about one hour with one 1" 
air stone. I don't think the bubbles themselves make much difference 
but the surface agitation does the job.

         A test could be done normally and then another by trapping 
the air from an air stone below the surface and then comparing the 
effect of the two setups.

Regards

-- 
Raj, vu2zap
Bangalore, South India.


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