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Re: Phosphorus (was: carbo plus)

Jody writes:

> There is a little
>  mystery going on with my tank which started when I  added PhosGuard to
>  remove excess phosphorous.  I believe the phosphorous had created a buffer,
>  b/c my pH was 7.2, and basically wouldn't budge.  Now my pH ranges from
>  7.3-7.8 from the am to pm, 

Commercial pH "fixers" depend on this same phosphate property to work.  It 
bounces back and forth between two different compunds in order to mystically 
maintain some magic pH balance.  

Bob Dixon