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Re: Duckweek and nitrogen fixation

>Date: Sat, 8 Nov 1997 00:25:55 -0500 (EST)
>From: TYELLA at aol_com
>Hello all,
>      I may be misremebering, but doesn't duckweed fix atmospheric
> If so, it may cause some problems.   I doubt, however, that an aquarium
>ever be nitrogen limited, so maybe there will be no problem at all.
No, duckweed is unable to fix atmospheric nitrogen.  

You'd be surprised at how easily a heavily planted tank can run out of
nitrates.  Not only can it happen, but when it happens, you often have
phosphate-related algae problems.

David W. Webb           Texas Instruments
(972) 575-3443 (voice)  http://www.dallas.net/~dwebb
(214) 581-2380 (pager)  2145812380 at alphapage_airtouch.com