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Re: Algae filters

Ed writes:

<snip>> Has anyone ever tried something like this in freshwater and am 
curious as
>  to how this would affect the nutrient levels in the tank plus the dosing
>  requirments.

There is a company making filters they call "Algae Scrubbers" that are 
effective in freshwater.  If you are keeping fish only in a tank, then they 
are great, but if you want plants to grow, then you need to use something 
else.  The filter ends up competing with the vascular plants for N,P, K, and 
most of the trace elements.  Not cool.

Bob Dixon