I disagree. Depending on the media in the wet dry.. this will dictate the
density of the bacteria provided there is need for a large density. The
density is a direct reflection of the load on the tank.
Roy Hunter
Co-Chairman
ANGFA of North America
visit the ANGFA website at:
http://www.angfa.org
reach me at:
roy at angfa.org
----------
> From: Craig Bingman <cbingman at netcom.com>
> To: rainbowfish at pcug.org.au
> Subject: Re: [RML] Fluidized bed vs. Wet/dry
> Date: Monday, May 26, 1997 6:02 PM
>
>
> I think the greatest advantage of a wet dry is gas exchange.
>
> Parameter Wet Dry Fluidized Bed
>
> Gas exchange Yes No, removes O2 from water
>
> Stability during Very good Extremely poor
> power outage or pump
> failure
>
> Density of nitrifying Relatively low Extremely high
> and heterotrophic
> bacteria, nitrifying
> capacity per unit volume
>
> Easy prefiltration Yes No
>
> others can add to the list....
>
> Craig