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Duckweed as an indicator
- To: Aquatic-Plants at actwin_com (Aquatic-Plants)
- Subject: Duckweed as an indicator
- From: "David W. Webb" <dwebb at ti_com>
- Date: Wed, 5 Nov 1997 11:56:12 -0500
- Conversation-Id: <BMSMTP878752457197a0206807 at dsks52_itg.ti.com>
>Date: Tue, 4 Nov 1997 17:48:33 -0500
>From: Beverly Erlebacher <bae at cs_toronto.edu>
>Subject: Re: Q: low tech, low maintence tank
>
>> Date: Mon, 3 Nov 1997 17:35:09 -0500
>> From: "David W. Webb" <dwebb at ti_com>
>>
>> Duckweed is a good indicator plant for a zero maintenance tank.
>
>Indicates how? I mean, when the duckweed does what (flourishes/
>disappears/turns yellow) it means that there is too (much/little)
>what (nutrient X, Y or Z)?
>
>My guess is flourishing duckweed means plenty of nitrogen, but please
>tell us your experience.
Although I haven't made the measurements to tell what nutrient is high in a
duckweed-covered tank, I find that flourishing duckweed generally indicates
the right conditions for flourishing algae. The nice thing about duckweed
is that it's a lot easier to harvest than algae. ;-)
--
David W. Webb Texas Instruments
(972) 575-3443 (voice) http://www.dallas.net/~dwebb
(214) 581-2380 (pager) 2145812380 at alphapage_airtouch.com