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Re: Aquatic Plants Digest V5 #193

Elmer L. Morehouse wrote:

>Tom Writes:
> >Agar gel is a long proven and effective nutrient medium.  I cultured many a
> >bacterium on it in college.   It would have several advantages over the 
> usual
> >methods.  Can  anyone think of any drawbacks?  How would the gel behave
> >over.time in a  submerged environment?
>Hoping that I am not risking  a long debate on this subject, I  am aware that
>the microbiology textbooks indicate that agar itself has no nutrient value
>(there must be
>something there-but not much-my own long held opinion). I have used agar and
>gelatin both in the formulation of home brewed fish foods.  I was never
>satisfied with either due to a slippery glass surface area developing.  As a
>result, I attributed this to them and stopped my experimentation of such.

Just to clarify, those were my comments and not Tom's.  As far as I know, 
agar has no food value at all.  Nutrients must be added.  How long did you 
use it in your fish food preparations before you noticed the slippery glass?
Chuck Huffine
Knoxville, Tennessee