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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.